It's equal to positive b squared, or (b x b) .
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By definition (-1)*(-1)=1.(-a)*(-b)(-1)*(a)*(-1)*(b)(-1)*(-1)*(a)*(b)(a)*(b) ■
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'.
No, unless "a" happens to be equal to 0, or to 1.
Negative sixty-four minus four squared is equal to -80.
(-3)^2 = 9