Question

Evaluate each expression for:
a=2 b=5 x=4 and n=10

[a+8(b-2)]^2÷4

Answer 1

169

Explanation:

Put a = 2 and b = 5 to the expression

`[a+8(b-2)]^2/4`

`[2+8(5-2)]^2/4`

Use PEMDAS

P Parentheses first

E Exponents

MD Multiplication and Division (left-to-right)

AS Addition and Subtraction (left-to-right)

`[2+8(5-2)]^2/4=[2+8(3)]^2/4=(2+24)^2/4\\\\=(26)^2/4=676/4=169`