Find the product (5x-y) (5x+y) – InterviewSolution

1.

Find the product (5x-y) (5x+y)

Answer»

$Product \:of \: ( 5x - y )( 5x + y ) \\= (5x)^{2} - y^{2}$

$\underline { \blue { By \: algebraic \: identity :}}$

$\boxed { \pink { ( a + b )( a - b ) = a^{2} - b^{2} }}$

$= 25x^{2} - y^{2}$

$\red { Product \:of \: ( 5x - y )( 5x + y ) }\green { = 25x^{2} - y^{2} }$

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