Question

evaluate this exponential expression

Answer 1

Answer:

171

Option D is the correct option.

Solution,

$4. {(2 + 5)}^{2} - {5}^{2} \\ =4. {(7)}^{2} - 5 \times 5 \\ =4 \times 7 \times 7 - 5 \times 5 \\ = 196 - 25 \\ = 171$

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Answer 2

Answer:

$171$

Answer D is correct.

Step-by-step explanation:

$4 \times {(2 + 5)}^{2} - {5}^{2} \\ 4 \times {7}^{2} - 25 \\ 4 \times 49 - 25 \\ 196 - 25 \\ = 171$