3 years ago

4. Simplify the expression:

1 answer:

3 0

Answer:

Step-by-step explanation:

$7x^2-6+4x+7-5x^2+x\qquad\text{combine like terms}\\\\=(7x^2-5x^2)+(4x+x)+(-6+7)\\\\=2x^2+5x+1$

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