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Find the sum of the given polynomials. 3x ^2 + 2x - 5 and -4 + 7x ^2
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Find the sum of the given polynomials. 3x ^2 + 2x - 5 and -4 + 7x ^2

User Shapecatcher
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1 Answer

5 votes

Answer:


10 {x}^(2) + 2x - 9

Explanation:


(3 {x}^(2) + 2x - 5) + ( - 4 + 7 {x}^(2)) \\ = 3 {x}^(2) + 2x - 5+ 7 {x}^(2) - 4 \\ = 3 {x}^(2) + 7 {x}^(2) + 2x - 5- 4 \\ = 10 {x}^(2) + 2x - 9

User Massimo Fazzolari
by
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