1,2,3(2,9) $42(No, that's incorrect. Try again.HINT: )$43($4255Your answer is not in simplest form. The radicand is a perfect square.)$44($4255Use the distributive property to multiply each term in the parentheses: a(b + c) = ab + ac.)$46($4255Use the distributive property to multiply. Be sure your answer is in simplest form.) n(2f>1)n(1f>1)
Perform the indicated operations. Assume all variables are positive. Be sure to simplify.#if(0=0)Use Ctrl-S to begin a radical and the right arrow to end it.#elseUse a \ to begin a radical and a ] to end it.#endif1(5 + 3) = ? iT11a1(5 + 3) +20First use the distributive+20property.= 1 5 + 31p+20Use a b = ab.= 6 + 31p= 7 + 31
1(2,7):p2(2,9)3(2,5) $42(No, that's incorrect. Try again.HINT: )$43($4255You need to multiply by the number 3 in front of the radical too.)$44($4255Use the distributive property to multiply each term in the parentheses: a(b + c) = ab + ac.)$46($4255Use the distributive property to multiply. Be sure your answer is in simplest form.)
4(3e1*) 21(2e3-)n(21=0)
Perform the indicated operations. Assume all variables are positive. Be sure to simplify.#if(0=0)Use Ctrl-S to begin a radical and the right arrow to end it.#elseUse a \ to begin a radical and a ] to end it.#endif1(2 - 31) = ? iT11a1(2 - 31)= (1)(2) - (1)(31)25Use the distributive property.p= 21 - (3 ÿ 1)25Recall that 1 ÿ 1 = 1.p= 21 - 425Simplify.
3(3,17):P $42(No, that's incorrect. Try again.HINT: )$43($4255Use FOIL. You did not use the last term.)$44($4255This is not the sum times the difference of two terms. Use FOIL to multiply.)$45($4255Use FOIL. You did not multiply the inner and outer terms.)$46($4255Use FOIL to multiply. Be sure your answer is in simplest form.)
4(3e3*)5(3e1+)6(4l10l/z)7(3l10l/z) 21(3e1-)
Perform the indicated operations. Assume all variables are positive. Be sure to simplify.#if(0=0)Use Ctrl-S to begin a radical and the right arrow to end it.#elseUse a \ to begin a radical and a ] to end it.#endif(3 + 1)(3 + 1) = ? iT11a(3 + 1)(3 + 1) F+6 O +7 I +7 L= 4 + 3 + 3 + 1p+20Combine like terms and simplify.= 5 + 23
3(3,17):P $42(No, that's incorrect. Try again.HINT: )$43($4255Use FOIL. You did not use the Last term.)$44($4255The numbers are conjugates. The answer will result in a rational number. Use FOIL again.)$46($4255Notice that the expressions are conjugates. Use FOIL to multiply. Be sure your answer is simplified.)
4(3e3*)5(3e1-)6(4l10l/z)7(3l10l/z)
Perform the indicated operations. Assume all variables are positive. Be sure to simplify.#if(0=0)Use Ctrl-S to begin a radical and the right arrow to end it.#elseUse a \ to begin a radical and a ] to end it.#endif(3 - 1)(3 + 1) = ? iT11a(3 - 1)(3 + 1) F+6 O +7 I +7 L= 4 + 3 - 3 - 1p+20Combine like terms and simplify.= 5
1,3(3,17):P $42(No, that's incorrect. Try again.HINT: )$43($4255Use FOIL. You did not multiply the inner and outer terms.)$44($4255You have simplified the radicals incorrectly.Recall that a2 = a NOT a2.)$46($4255Use FOIL to multiply. Be sure your answer is in simplest form.) n(1<=3)
Perform the indicated operations. Assume all variables are positive. Be sure to simplify.#if(0=0)Use Ctrl-S to begin a radical and the right arrow to end it.#elseUse a \ to begin a radical and a ] to end it.#endif(33 - 1)(23 + 1) = ? iT11a(33 - 1)(23 + 1) F+6 O +7 I +7 L= 64 + 35 - 25 - 8p+20Combine like terms and simplify.= 9 + 5
1(2,7):p2,4(2,9) $42(No, that's incorrect. Try again.HINT: )$43($4255Use FOIL. You did not multiply the inner and outer terms.)$44($4255The inner and outer terms are not like terms and cannot be combined. After FOIL no terms are like terms.)$45($4255Multiply using FOIL again. Check the inner term.) $30()$31(45)$32(46)
1,2(2,15):p $42(No, that's incorrect. Try again.HINT: )$43($4255You need to simplify your answer to lowest terms. Some radicals contain perfect square factors.)$44($4255Multiply using FOIL again. Check.)$45($4255Check your last term.Recall that a2 = a NOT a2.) n(2>=1)
10(1,6)1,3(2,6) 11,12(2,10)13(1,2) $1(x)$2(y)$3(z)$4(t)$5(p)$6(m)$7(n)$8(k) $42(No, that's incorrect. Try again.HINT: )$43($4255You need to simplify your answer to lowest terms. Some radicals contain perfect square factors.)$44($4255Multiply using FOIL again. Check the inner and outer terms.)$45($4255Check your first and last terms.Recall that a2 = a NOT a2.) n(1e3g>1)n(11Dz=11D)n(12Dz=12D)