Question

subtract 7 x³-6x²y+ 9xy²-2y³ from 3x²y- 2x³+y³-5xy²​

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

$\: \: \:\: ( 3 {x}^{2} y - 2 {x}^{3} + {y}^{3} - 5x {y}^{2} ) - (7 {x}^{3} - 6 {x}^{2} y + 9x {y}^{2} - 2 {y}^{3} ) \\ \\ = 3 {x}^{2} y - 2 {x}^{3} + {y}^{3} - 5x {y}^{2} - 7 {x}^{3} + 6 {x}^{2} y - 9x {y}^{2} + 2 {y}^{3} \\ \\ = (3 {x}^{2} y + 6 {x}^{2} y) + ( {y}^{3} + 2 {y}^{3} ) - 5x {y}^{2} - 9x {y}^{2} - 2 {x}^{3} - 7 {x}^{3} \\ \\ = 9 {x}^{2} y + 3 {y}^{3} - 14x {y}^{2} - 9 {x}^{3}$