Question

Вычислите -0,25^-2 * 100

Answer 1

-$0,25^{-2} *100=-( \frac{25}{100} ) ^{-2} *100=-( \frac{100}{25} ) ^{2} *100= -4^{2} *100=-1600$

Answer 2

-0,25=-1\4
т.е. (-1\4)^2*100=(-4)^2*100=16*100=1600