Question

PLZZZ help with this its pretty simple!

Answer 1

It should be D,
`x^4 - 2x^3 + 7x^2 -12x - 4`

Explanation:

Since, the equation given in the question is the factored form of the equation D. It can be solved using FOIL (First Outside Inside Last):

x * x³ =
`x^{4`

x * 7x = 7x²

x * 2 = 2x

-2 * x³ = -2x³

-2 * 7x = -14x

-2 * 2 = -4

This all would add up to ⇒
`x^(4)` - 2x³ + 7x² + (-14x + 2x) -4

Simplifying the parenthesis further would give the option D as the answer.