Asked by Becky

Evaluate the polynomial for x=2

2x^2-4x+2=2*(2)^2-4*(2)+2
=2*4-4*(2)+2
=8-4*(2)+2
=8-(8)+2
=18

Am I right or wrong?
Answered by drwls
You are OK up until the last step.

How can you say that 8 - 8 + 2 = 18?
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