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If x + y = 12 and x - y = 3, then x2 - y2 =​

If x + y = 12 and x - y = 3, then x2 - y2 =​
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2 votes
If x + y = 12 and x - y = 3, then
x2 - y2 =​

User Robsiemb
by
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1 Answer

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x^2-y^2=(x-y)(x+y)\\\\x^2-y^2=3\cdot12=36

User PathOfNeo
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8.0k points
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