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Algebra Difficulty 1.1 Junior Find the answer Canada

If $x=2$ , the value of $4x^2-3x^2$ is

Pick one

Solution

Simplifying, $4x^2 - 3x^2 =
x^2 $. When$ x=2$, this
expression equals $4$ .

Alternatively, when $x = 2$ , we have
$4x^2 - 3x^2 = 4 $\cdot$ 2^2 - 3 $\cdot$ 2^2 = 16
- 12 = 4$.

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Source: CEMC, University of Waterloo, licensed CC-BY-NC-4.0. Statement reproduced verbatim; metadata (topic, difficulty) added by this project.