factorisation using(a-b)²(a+b)² please give step by step please
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11. (a+5)(a+3)
Step-by-step explanation:
11.
a^2+8a+15
a^2+(3+5)a+15
a^2+3a+5a+15
a(a+3)5(a+3)
(a+5)(a+3)
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Hope this satisfies yylour question demand .
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