1.

Factorise using identity 16xsquare-25​

Answer»

GIVEN EQUATION,

16x^{2} -25=0

\boxed{\bold{Formula \ to \ be \ used = a^{2} -b^{2} =(a+b)(a-b)}}}}

Now,

\sqrt{16x^{2} } = 4x\\\\\ \sqrt{25} =5

\boxed{\boxed{\bold{Therefore, the \ factorized \ expression \ is \ (4x+5)(4x-5)}}}

                                                         


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