Question

X4-x3-7x2+x+6=0 sabendo que -2e 1 sao raizes da equação

Answer 1

x-7x2X+X+6=0
2x-7x2X+6=0
2x-14X+6=0
-12x+6=0
-12x=-6
x=-6÷-12
x=$\frac{-6}{-12}$
x=$\frac{6}{12}$
x=$\frac{1}{2}$