Question

Evaluating expressions

Answer 1

10

Explanation:

● (2/5) ( a + 2b)^2

a = 3 and b = -4

● (2/5) ( 3 + 2(-4))^2

● (2/5) ( (3 - 8 )^2

● (2/5) (-5)^2

● (2/5) 25

● 10

Answer 2

10

Explanation:

2/5 ( a+2b)^2

Let a =3 and b = -4

2/5 ( 3+2*-4)^2

Parentheses first

2/5 ( 3 -8)^2

2/5 ( -5)^2

Then exponents

2/5 ( 25)

Multiply

10