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Circle the student error in the problem below, and rewrite what the correct step should be

Circle the student error in the problem below, and rewrite what the correct step should-example-1

1 Answer

6 votes

Answer:

Circle the 1x in the expression g(x) = 2(x^2 +1x +1 ) - 6

Explanation:

given the expression 2(x+1)^2 -6 we have:
2(x+1)^2 -6= 2(x+1)(x+1)-6

= 2(x^2 +x*1 + 1 *x + 1*1) -6

= 2( x^2 + x+x +1) -6

= 2 (x^2 +2x +1) -6

The student wrote 1x instead of 2x on the 3rd line of the image

User Andrew Song
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