Question

PLEASE HELP ILL GIVE BRAINLIST Write an equation in Standard Form that has roots -4 and 7.

Answer 1

Answer:

$x^{2} -3x-28$

Step-by-step explanation:

To find this equation in standard form, first, write it in factored form. This looks like $y=(x+4)(x-7)$. Then, multiply the polynomials using the FOIL (First, Outside, Inside, Last) method.

1. Following the FOIL method, you should multiply the first terms in each binomial, $x*x$, which equals $x^{2}$.
2. Then, the outside terms, $x*-7$. This equals $-7x$.
3. Next, the inside terms, $4*x$$=4x$.
4. Finally, the last terms, $4*-7$, this equals $-28$.

Then, add all of the terms together $x^{2} + -7x+4x+-28$. To get the standard form, combine like terms, this comes out to $x^{2} -3x-28$.