The product of 5 and x squared — 5(x)^2
We can multiple this binomial and this trinomial to find an equivalent expression.
(x + 4)(3x^2 + 2x)
3x^3 + 2x^2 + 12x^2 + 8x
Combine like terms.
3x^3 + 14x^2 + 8x is the equivalent polynomial.
Answer:
B
Step-by-step explanation:
GI is made up of the segments GH and HI. In other words:

We know that GH is 2 and GI is 7. Substitute:

Subtract 2 from both sides:

So, our answer is B.
And we're done!
665x12=79.80 increase add it to the 665