F(x) = x^4- x^4 - 20

find all zeros by factoring and explaining the steps

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?

Why is studying fractions important

When is g(x) = 0 for the function g(x) = 5.23x + 4?