Could someone help me out with this one
2x2 − 6x − 8=2(x − 4)(x + 1),
The Expression is
2x^2 -6x -8
These are the steps i have done
(X+A) (X+B)
X^2+(A+B)x+AB
A+B= -6
A.B=-8
Factors of 8 are 1,2 and 4
so i went with -2+-4 to get A+B=-6
but -2.-4= Possitive 8
so, i factored everything by 2
2(x^2-3-4)
which equal 2x2 − 6x − 8
Then why 2(x − 4)(x + 1) is the correct answer?
2x2 − 6x − 8=2(x − 4)(x + 1),
The Expression is
2x^2 -6x -8
These are the steps i have done
(X+A) (X+B)
X^2+(A+B)x+AB
A+B= -6
A.B=-8
Factors of 8 are 1,2 and 4
so i went with -2+-4 to get A+B=-6
but -2.-4= Possitive 8
so, i factored everything by 2
2(x^2-3-4)
which equal 2x2 − 6x − 8
Then why 2(x − 4)(x + 1) is the correct answer?