Identify Equation & Question: Identify the equation and what is being asked.We are given x3=8 and need to find the value of x.
Express 8 as Term: Express 8 as a term raised to the power of 3. 8 is 2 raised to the power of 3, since 2×2×2=8. So, we can write 8 as 23.
Set Equation Equal: Set the equation x3 equal to 23.Since x3=8 and 8=23, we have x3=23.
Find Cube Root: Find the cube root of both sides of the equation.To find x, we need to take the cube root of both sides of the equation because the cube root is the inverse operation of raising a number to the power of 3.The cube root of x3 is x, and the cube root of 23 is 2.Therefore, x=2.
More problems from Evaluate integers raised to positive rational exponents