Question

by what number 1/2 to the power of -1 be multiplied so that the product is -5/4 to the power of -1

Answer 1

(1/2)^-1=2
(-5/4)^-1=-4/5
2×a=-4/5
a=-4/5÷2
a=-2/5

Answer 2

[(1/2)-1]x=(-5/4)-1
x=(-5/4/1/2)-1
x=(-5×2/4×1)-1
=(-10/4)-1
=4/-10