Question

Subtract 5x2 + 7xy – 5y2 from 8x2 + 6xy - 3y2

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Answer 1

Answer:

$8x {}^{2} + 6xy - 3y {}^{2} - (5x {}^{2} + 7xy - 5y {}^{2} ) \\ = 3x {}^{2} - xy + 2y {}^{2}$

Answer 2

Answer:

Correct Question:-

Subtract

$5x {}^{2} + 7xy - 5y {}^{2} \: \: from \: \: 8x {}^{2} + 6xy - 3y {}^{2}$

Solution:-

$8 {x}^{2} + 6xy - 3y {}^{2} - (5x {}^{2} + 7xy - 5y {}^{2} ) \\ \\ = 8x {}^{2} + 6xy - 3 {y }^{2} - 5 {x}^{2} - 7xy + 5y {}^{2} \\ \\ = 8 {x}^{2} - 5x {}^{2} + 6xy - 7xy + 5y {}^{2} \\ \\ = 3 {x}^{2} - xy + 5 {y}^{2}$