Multiply the following polynomials (5x^2-7)(5x^2+7)

Mathematics · Middle School · Thu Feb 04 2021

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We have, 5x^2(5x^2+7)−7(5x^2+7)

 

Apply the distributive property:

5x^2(5x^2)+5x^2⋅7−7(5x^2+7)

5x^2(5x^2)+5x^2⋅7−7(5x^2)−7⋅7

 

Simplify and combine like terms.

25x^4+35x^2−35x^2−49

25x^4+0−49

25x^4−49