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2. Evaluate: [tex]7+2 \times 9^2=[/tex]

A. 162
B. 169
C. 331
D. 729

Sagot :

GinnyAnsweridn
Sure, let's solve this step by step.

We want to evaluate the expression [tex]\(7 + 2 \times 9^2\)[/tex].

1. Evaluate the exponentiation first (order of operations, i.e. PEMDAS/BODMAS):
[tex]\[ 9^2 = 81 \][/tex]

2. Next, perform the multiplication:
[tex]\[ 2 \times 81 = 162 \][/tex]

3. Finally, perform the addition:
[tex]\[ 7 + 162 = 169 \][/tex]

Hence, [tex]\(7 + 2 \times 9^2\)[/tex] evaluates to 169.

The correct answer is:
B. 169
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