Evaluate mº - n2 for m = 2 and n = -1.

Before simplifying, how many terms are there in the expression 2x - 5y + 3 + x?

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.

For each sentence below, find the value of x that makes each sentence true. (515) 5 = 25* x= (813)2 = 4* x=