1.

9. Subtract4p²-3q²+5p²q²from9p²-8q²+16p²q²​

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∴ (9p²-8q²+16p²q²​) - (4p²-3q²+5p²q²) = 5p² - 5q² + 11p²q²

Step-by-step explanation:

9. SUBTRACT  4p²-3q²+5p²q²from9p²-8q²+16p²q²​

⇒ GIVEN, EQUATIONS are -

4p²-3q²+5p²q² ---------------1)

9p²-8q²+16p²q²​ -------------2)

subtract equation 1) from 2)

∴ (9p²-8q²+16p²q²​) - (4p²-3q²+5p²q²)

⇒ 9p² - 8q² + 16p²q² - 4p² + 3q² - 5p²q²

⇒ 9p² - 4p² - 8q² + 3q² + 16p²q² - 5p²q²

⇒ 5p² - 5q² + 11p²q²



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