Question

Expand: (5x-7) (5x+7)​

Answer 1

Answer:

${25x}^{2} - 49$

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Answer 2

Given that:-

$(5x-7) (5x+7)$

As we have to expand the given expression,

For, that distribute the bracket term

$=>5x(5x+7)-7(5x+7)$

By simplifying it we get,

$=>25x^{2} +35x-35x-49$

Combining like terms,

$=>25x^{2} -49$

The required solution is $25x^{2} -49$