x2 = -25
There exists no real number for which this is true, so we must use imaginary numbers...
x = 5i
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find out what 6 squared equals. which is 6 x 6 and that equals 36
X=1
since y = 3x+1 we have y squared =(3x+1) squared x^2 + y^2 = 25 x^2 + (3x+1)^2=25 x^2 + 9x^2+ 6x+1 = 25 10x^2 + 6x + 1 = 25 10x^2 + 6x -24 = 0 solve x from quadratic formula x = 1.28 y = 3x + 1 = 4.83
0
Using the quadratic equation formula: x = 8.42 or x = -1.42