If you are using 1, -1 * -1 = 1
1 * (-1^2) = 1 * 1 = 1
It is known that a>0 and b<0. Compare the values of the following expressions to zero:
ab^2
i dont understand why i always get these wrong, i pluged in numbers that match with what it says and i solve:
1*-1^2=-1, 0 is greater than ab^2
but i got that wrong i dont understand why though
2 answers
b^2 is always positive, so since a>0,
ab^2 > 0
ab^2 > 0