Question

What is the value of x in the equation 25x2=16

Answer 1

x=0.8,−0.8

Explanation:

Step 1: Divide both sides by 25.

25x225=1625

x2=1625

Step 2: Take square root.

x=±1625

x=0.8,−0.8

Answer 2

25x2 = 16

x^2 = 16/25

x^2 = 4^2/5^2

x = 4/5