Factorise : 64a^2 - 49
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a^2 - b^2 =(a+b)(a-b)
(8a)^2 - ( 7)^2
(8a + 7)(8a - 7)
(8a)^2 - ( 7)^2
(8a + 7)(8a - 7)
rahul203:
thank you so much!
Answered by
1
64a^2-49.
=(8a)^2-(7)^2 by using a^2-b^2=(a+b)(a-b).
=(8a+7)(8a-7)ans
=(8a)^2-(7)^2 by using a^2-b^2=(a+b)(a-b).
=(8a+7)(8a-7)ans
8a-7
is the answer i think
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