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   ocr: Solve: 3x2+11x-4=0 Factor (3x-1)x+4)-0 Setfactors to 0 3x-1=0or X+4=0 Solve each X= =l - - 3 1 =-4 equation Check: x=3 X=-4 3()+11()-4-0 3(-4)-11(-4)-4-0 1+4-4=0 48+ +(-44)-4=0 4-4=U 4-4=0 Atrue statement Atrue statement By the Quadratic Formula By Factoring Solving Quadratic Equations