a²+8a+16 factorise the following expressions
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qwerty
Step-by-step explanation:
Answered by
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Answer:
Step-by-step explanation:
Given that,
a²+8a +16
= a²+4a+4a +16 ( ∵ 1 × 16 = 16 , 4 × 4 = 16 , 4 + 4 =8 )
= a (a + 4 ) + 4 ( a +4 )
= ( a + 4 ) ( a + 4 ) or
= ( a + 4 )² is the answer.
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