Question

$5a { }^{2} - 7ab + 5b {}^{2} from \: 3ab - 2a {}^{2} - 2b {}^{2}$
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Answer 1

Answer:

10ab ‐ 7a² ‐ 7b²

Step-by-step explanation:

= (3ab ‐ 2a²‐ 2b²) ‐ (5a²‐ 7ab + 5b²)

= 3ab + 7ab ‐ 2a² ‐ 5a² ‐ 2b² ‐ 5b²

= 10ab ‐ 7a² ‐ 7b²

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