AAN
Factorise: aet
altay + be+by
2 Factorise: a²-9
Factorise: : a²+70+ 12
in a² tua-12
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Answer:
a^2-9= ( a -3)(a+3)
a^2+7a+12= a^2+4a+3a +12= a(a+4)+3(a+4)
=(a+4)(a+3)
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