Exercise 35 Page 13

Let's substitute

g = 2

and

r = 3

in the expression and then simplify. Remember to carefully follow the order of operations. In this case, before we can find the difference, we should first simplify the expression inside the parentheses, evaluate the exponent and multiply, in that order.

3 g (g + r)^{2} - 1

SubstituteII

$g = 2$ , $r = 3$

3 (2) (2 + 3)^{2} - 1

AddTerms

Add terms

3 (2) (5)^{2} - 1

CalcPow

Calculate power

3 (2) (25) - 1

Multiply

150 - 1

SubTerm

Subtract term

149