Question

which part of the expression will you evaluate first?
x²
powers are evaluated before multiplication or addition.
substitute 6 for x.
8 + 2x² = 8 + 2 ( ? )²
options: 2, 6, 8, 12

Explanation:

Step1: Understand the substitution

We are given to substitute \( x = 6 \) into the expression \( 8 + 2x^{2} \). So we replace \( x \) with 6 in the \( x^{2} \) part (or the entire expression where \( x \) is present).

Step2: Identify the value to substitute

Since we substitute 6 for \( x \), in the expression \( 8 + 2(\underline{?})^{2} \), the? should be 6 because we are replacing \( x \) with 6.

Answer:

6 (specifically, the value to put in the box is 6, so the option corresponding to 6, which is the second option in the dropdown: 6)