Find all of the roots of the equation. - X4 - 6x2 + 8 = 0
a. +1,2
b. +1, +2
C. 1, +2
d. 1,2

What is the probability of rolling a single die greater than 4

Aswimming pool had 2.5 million liters of water in it. some water evaporated, and then the pool only had 22 million liters of water in it. what percent of the water evaporated?

What is the best way to answer questions with a x expression in the question. for example 3x + 10x=?