x-2 = 14
x = 14+2
x = 16
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The equation is -x2 - 4 = 14 or -x2 = 18 which is the same as x2 = -18. That is the quadratic equation.
(2x)ysquared
Take the square root of both sides of the equation
You cannot, in general, solve one equation with two unknown variables. x - y = x - x2 Subtract x from both sides: - y = - x2 Change signs: y = x2 And that is as far as you can go.
(4 ± i2) where i2 = -1