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Nana76 [90]
3 years ago
15

Evaluate 3x^2-1 when x=2

Mathematics
2 answers:
Artemon [7]3 years ago
6 0
Hey there,

3x^2 - 1 (x = 2)

Plug in 2 for x

3(2)^2 - 1

Do the exponent

3(4) -1

Multiply and the subtract

12 -1 = 11

The answer would be 11

Hope I helped :)

~Char
AlekseyPX3 years ago
3 0
3x^2-1, x=2

3(2)^2-1

3(4)-1

12-1

11

When x=2, 3x^2-1=11.
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