Question

How to Simplify (x²+4)(x²-4)?​

Answer 1

Answer:

x⁴-16

Step-by-step explanation:

x²(x²-4) + 4(x²-4)

x⁴-4x²+4x²-16

x⁴+0-16

x⁴-16

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Answer 2

Step-by-step explanation:

the first term and second in both are same but their sign r opposite.

so we should use the formula (a+b)(a-b)=a²-b²(x²+4)(x²-4)

=(x²)²-4²

=x⁴-16

we can not substract it

so it is the simplest form