Exercise 26 Page 698

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

(- 5z+6)^2

ExpandPosPerfectSquare

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

(- 5z)^2+2(- 5z)(6)+6^2

Multiply

Multiply

(- 5z)^2-60z+6^2

PowProd

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

(- 5)^2z^2-60z+6^2

CalcPow

Calculate power

25z^2-60z+36