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5 votes
5 votes
(-10x^2+2)+(-2x^2+9x+7)

User Sean Burton
by
2.5k points

1 Answer

14 votes
14 votes

Answer:

- 12x² + 9x + 9

Explanation:

(- 10x² + 2) + (- 2x² + 9x + 7 ) ← remove parenthesis

= - 10x² + 2 - 2x² + 9x + 7 ← collect like terms

= - 12x² + 9x + 9

User Toddcscar
by
3.3k points