Question

Express the area of the entire rectangle.
Your answer should be a polynomial in standard form.
(3x^2 + 8x + 7) (7x^2)

Answer 1

Answer:

$21x^{4}+ 56x^{3}+49x^{2}$

Step-by-step explanation:

When we multiply the two sides together, we get:

(3x²·7x²) + (8x·7x²) + (7·7x²) =

$21x^{4}+ 56x^{3}+49x^{2}$

This is the polynomial in standard form.