Question

Evaluate this exponential expression.

4. (2 + 5)2 - 52 =
A. 46
B. 144
c. 8
D. 171

Answer 1

Answer: D 171

Explanation:

Answer 2

B

Explanation:

Given

4(2 + 5)² - 52

Evaluate the parenthesis

4 × 7² - 52 ← evaluate the exponent

4 × 49 - 52 ← evaluate the multiplication

= 196 - 52 ← evaluate the subtraction

= 144 → B