Question

Use the difference of two squares!

a. x²-4

I need answer now pls!!!

Answer 1

Step-by-step explanation:

x^2-4=x^2-2^2=(x-2)(x+2)

Answer 2

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$\sf x{}^{2}-4 \\ (x){}^{2}-(2){}^{2} \\ (x+2)(x-2)$