which expression is equivalent to -28x²-35x-7
A) (7x-3) (-4x+3)
B) (-7x-7) (4x+1)
C) (7x+3) (-4x-3)
D) (-7x+7) (4x-1)
we have
-28x^2-35x-7
Solve the quadratic equation by graphing
see the attached figure
The zeros of the function are
x=-1 and x=-1/4
therefore
-28x^2-35x-7=-28(x+1)(x+1/4)
simplify
-28(x+1)(x+1/4)=-(7)(4)(x+1)(x+1/4)=(-7x-7)(4x+1)
therefore
answer is option B