Factorise:a^2-23a-108
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a^-23a-108
a^2-27a+4a-108
a(a-27) +4(a-27)
(a-27) (a+4)
a^2-27a+4a-108
a(a-27) +4(a-27)
(a-27) (a+4)
Tajinder12345:
thank you
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