(a+2) (a to the power2+25) -10a2-20a factorise
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Answer:
(a+2)(a²+25)-10a²-20a
a³+25a+2a²+50-10a²-20a
a³-8a²+5a+50
(a+2)(a-5)(a-5)
or
(a+2)(a-5)²
Step-by-step explanation:
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