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What is the factor of 256 x2 – 49 ?

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(16x +7) (16x - 7)

(16x +8)(16x – 8)

(16x –7)(16x – 8)

(16x –8)(16x + 8)

answer is A.

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Detailed Solution

Given: 256x2 – 49
256x2 – 49 =0
256x2 = 49
x2 =

⇒

= 0 or

⇒ 16x – 7 = 0 or (10x + 7)= 0
So, (16x –7) (16x + 7)

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