SOLUTION: Simplify:
(7x^2+3x-9)-(-x^2+8x-3)
Algebra.Com
Question 43472: Simplify:
(7x^2+3x-9)-(-x^2+8x-3)
Answer by aaaaaaaa(138) (Show Source): You can put this solution on YOUR website!
Be aware of minus signs! You ahve to invert the signs of the whole second poly:
Then, you sum every term that has the same literal part:
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