14-01-2021
Mathematics

contestada

Select the correct product
(x2+4) (x2-4)

x4 16
x4+16
x2+8x+16
x2 8x 16

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emirmoragonzalez2005 emirmoragonzalez2005

14-01-2021

The answer would be x^4 -16
Explanation: use the FOIL method.
(x^2 +4)(x^2 -4)= x^4 +4x -4x -16. 4x and -4x cancel each other out. You are left with x^4 -16.
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