WyzAnt.comfinding the roots of the quadratic equation
how do i factor 3x^2-x-2
WyzAnt Tutors: Sign In to answer this question.
1 Answer
3*(-2) = -3*2 and -3+2 = -1, the coefficient of x.
So,
3x2-x-2
= 3x2 - 3x + 2x-2
= 3x(x-1) + 2(x-1)
= (3x+2)(x-1)
finding the roots of the quadratic equation
3*(-2) = -3*2 and -3+2 = -1, the coefficient of x.
So,
3x2-x-2
= 3x2 - 3x + 2x-2
= 3x(x-1) + 2(x-1)
= (3x+2)(x-1)