10.Simplify : (2.5p − 1.5q) ²− (1.5p − 2.5q)²
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Step-by-step explanation:
(2.5p−1.5q)
2
−(1.5p−2.5q)
2
=6.25p
2
−7.5pq+2.25q
2
−(2.25p
2
−7.5pr+6.25q
2
)
=6.25p
2
−7.5pq+2.25q
2
−2.25p
2
+7.5pq−6.25q
2
)
=4p
2
−4q
2
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