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Determine if x^2100 is a difference of 2 squares, if so factor it. ?

How do you work out the x intercepts of the equation #y=2(x4)^23# by factorising? Thanks!

Differentiate #\frac{r}{\sqrt{r^2+5}}# ?

Donna bought 4.356 pounds of cheese. What is the value of each of the digits in 4.356?

70,500 in scientific notation?

How do you solve by completing the square #a^2 6a5=0#?

How do you simplify #(x^3+x^22x)/(x^3+2x^2x2)#?

How do you solve #(2/5)x + (1/5)y = 1# and #x + (2/5)y = (8/5)#?

How do you simplify #9(x  2) –3(x – 1)#?