We have 3⁴ = 81, so we can factorize this as a difference of squares twice:

Depending on the precise definition of "completely" in this context, you can go a bit further and factorize
as yet another difference of squares:

And if you're working over the field of complex numbers, you can go even further. For instance,

But I think you'd be fine stopping at the first result,

Dependent variable is the variable that changes due to the independent variable, independent variable is the variable that scientists change on purpose.
Answer:8
Step-by-step explanation: Since the opposing way of solving is division, you divide 72 into 9 and you get 8.
Answer:
680 girls and 850 boys
Step-by-step explanation:
the ratio of girls is 4/9
then we can find the number of girls (G) in the group of 1530 students using proportions:
4 / 9 = G / 1530
solving for G by multiplying both sides of the proportion by 1530, we get:
G = 4 * 1530 / 9 = 680
So there were:
680 girls and 1530 - 680 = 850 boys
Answer:
3/4?
Step-by-step explanation:
maybe not but i think this is it