Factorise the following by using rearranging the terms
a.63p2q2r2s -9pq2r2s2+ 105 p3q3r2s -15p2q3r2s
b. 5a(2x-3y) + 2b(2x-3y)
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Answer:
B) (5a+2b)(2x-3y)
Hope it helps
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