Q.1 add the following polynomials a) -5x^3- 9x^2 - 5x +7 and -2x^2+ 7x^3 -3x -8
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Step-by-step explanation:
=-5x³-9x²-5x+7-2x²+7x³-3x-8
=2x³-11x²-8x²-1
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