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Q: If x squared minus y squared equals 10 and x plus y equals 5 what is x minus y?

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b= 10

If x squared -10 = 0 then x = the square root of 10

The answer is 100.

A equals 4 because 4 plus 6 is 10 or 10 minus 6 is 4.

It can be: 5+10-5 = 10

-7 plus 10 is the same as 10 minus 7, which is 3.

It is possible.

2 squared plus 2 x 3 = 10, 7 squared plus 7 x 2 = 63, 6 squared plus 6 x 5 = 66,8 squared plus 8 x 4 = 96 so 9 squared plus 9 x 7 = 81 + 63 = 144.

If I have this correct you are asking x^2 + 10^2 = 12^2 Then x=6.633249507108

C equals the square root of 1000 or 31.622776601683793319988935444327...

20x2 - 3x + 10 does not have any real factors.

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