Question

${49x}^{2} - 64$
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Answer 1

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$\mathfrak{The\:Answer\:is}$

$49x {}^{2} - 64 = 0$

$= > 49x {}^{2} = 64$

$= > x {}^{2} = 64 \div 49$

$= > x = \sqrt{64 \div 49}$

=> x = 8/7

$\boxed{Hope\:This\:Helps}$

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Answer 2

Answer:49x^2-64 = (7x+8) (7x-8)

Step-by-step explanation: Use the identity

a^2-b^2 =(a-b) (a+b)