Question

Which expression is equivalent to( 9x^2+2x-7)(-4)

a.(9x^2+2x-7)(x)+(9x^2+2x-7)(x-4)
b. x(9x^2+2x-7)-4
c.-4x(9x^2+2x-7)
d. x(9x^2+2x-7)+4(9x^2+2x-7)

Answer 1

I'm pretty sure its B. (9x2+2x-7)(x)+(9x2+2x-7)(-4)

Because its just splitting up the (x-4) and if you add the answers together then you get the same answer as the original

Explanation:

Answer 2

Answer: Option 'b' is correct.

Explanation:

Since we have given that

`(9x^2+2x-7)(x-4)`

We need to find the equivalent form:

We will apply "Distributive law":

`a* b+a* c\\\\=a* (b+c)`

So, it becomes,

`x(9x^2+2x-7)-4(9x^2+2x-7)`

Hence, Option 'b' is correct.