Question

factorise
${x}^{2} - \frac{25}{49} =$

Answer 1

hey your ans is here
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given
x2-25/49
x2-(5/7)^2
now using the identity
a2-b2=(a+b)(a-b)
so
(x+5/7)(x-5/7)
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hope it helps!

Answer 2

հҽվ ตαԵҽ հҽɾҽ ís վօմɾ αղsաҽɾ

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5^2=25 and 7^2=49

so, 25/49=(5/7)^2

using a^2-b^2 identity we get

(x+5/7)(x-5/7)

HOPE IT HELPS YOU