factorise 25(a+b)^2-36(a-b)^2
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Verified answer
Answer:
Step-by-step explanation:
25(a^2+b^2+2ab)-36(a^2+b^2-2ab)
25a^2+25b^2+50ab-36a^2-36b^2+72ab
-11a^2-11b^2+122ab
-11(a^2+b^2-11ab)
Hope it helps
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