Posted by
**Lily** on
.

Simplify. (5x2 + 3x - 7) - (x2 - 7x + 4)

Simplify. (5x^2 + 3x - 7) - (x^2 - 7x + 4)

distribute - sign to get

-x^2 +7x -4

put on top of one another and add

5x^2 + 3x - 7

-x^2 + 7x - 4

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4x^2 +10x -11