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Use a vertical format to subtract the polynomials.
7x2 - 7x + 1
- (10x2
+ 9x – 5)

Sagot :

Docgirlidn
7x^2 minus 10x^2 is 3x^2

-7x +9x is 2x

Lastly, 1 + -5 is -4

So your answer should be 3x^2 +2x-4. I hope this helps. Also I hope the picture is clear enough to see!
View image Docgirl
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