Exercise 18 Page 31

We can find the product of this expression using polynomial identities. In this case, we have the square of a binomial.

(2b+3)^2

ExpandPosPerfectSquare

(a+b)^2=a^2+2ab+b^2

(2b)^2+2(2b)(3)+3^2

Multiply

Multiply

(2b)^2+12b+3^2

PowProdII

(a b)^m=a^m b^m

2^2b^2+12b+3^2

CalcPow

Calculate power

4b^2+12b+9