Question

What is the solution to the following equation if x = 5?
x^3 + 2x^2 +x + 6

A. 756

B. 186

C. 46

D. 26
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Answer 1

Step-by-step explanation:

${x}^{3} + 2{x}^{2} + x + 6 \\ = {5}^{3} + 2 \times {5}^{2} + 5 + 6 \\ = 125 + 50 + 11 \\ = 186$

Thus, option B 186 is the correct answer.

Answer 2

Answer

(B). 186

Step-by-step explanation:

(5)^3 + 2 x 5^2 + 5 + 6 =

5 x 5 x 5 + 2 x 5 x 5 + 5 + 6 =

125 + 2 x 25 + 5 + 6 =

125 + 50 + 5 + 6 =

186