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3 years ago

Divide the following polynomial (16x^2-25)÷(4x+5)

1 answer:

5 0

Differnce of 2 perfect squares, recognize

(a^2-b^2)=(a-b)(a+b)
so
(16x^2-25)=((4x)^2-(5^2))=(4x-5)(5x+5)

so

(16x^2-25)/(4x+5)=(4x-5)(4x+5)/(4x+5)=4x-5

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