If I understand the question correctly, the answer is not in real numbers. But in the complex domain, there is the imaginary number i is such that i2 = -1.
And so, for any positive x, [i*sqrt(x)]2 = i2*x = -1*x = -x, which is negative.
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Because the square root of -25 would be that number that, squared, would equal -25. No number, positive or negative, can result in a negative square. Since -25 is a negative number, no number, positive or negative, can be squared to equal -25.
It's equal to positive b squared, or (b x b) .
Negative sixty-four minus four squared is equal to -80.
Of course it is. 'a' can be any positive or negative number, and 'b' is its square.That's no problem.What is difficult is for 'b' to be a negative number in the same equation.No real number for 'a' can produce a negative 'b'.
An odd number squared would always equal an odd number and an even number squared would always equal an even