Question

Factorise the following expression :
49 x ^ 2 - 64
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Answer 1

Step-by-step explanation:

49x²-64 =0

x²=64/49

x=8/7

is the answer of this question

Answer 2

the

Explanation: 49x2−64=

or (7x)2−(8)2=0

or (7x+8)(7x−8)=0

∴(7x−8)=0or(7x+8)=0

∴x=87orx=−87 [Ans].

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