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Help me solve this 4 — (x-2) (x+2)​
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Help me solve this
4 — (x-2) (x+2)​

User Stasi
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1 Answer

7 votes

Using
(x-a)(x+a)=x^2-a^2 to obtain


4-(x^2-4)=4-x^2+4=8-x^2

Hope this helps.

User LanceSc
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6.6k points
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