Question

Decide if the following attempts to combine like terms are

correct. If a mistake was made, say what it was and correct it.

a. 4xy + 7y2x + 3x2y + 2yx = 6xy + 10x3y3

b. (2x2 + 1) + (3x + 7) + (x2 − 8x)=3x2 − 5x + 8

Step 1

The error in the simplified form ...

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