McGraw Hill Integrated II, 2012
MH
McGraw Hill Integrated II, 2012 View details
6. Analyzing Functions with Successive Differences
Continue to next subchapter

Exercise 43 Page 145

Take the square root of each side.

±5

Practice makes perfect
To solve a quadratic equation in the form x^2=n, take the square root of each side. For any number n≥ 0, if x^2=n, then x=±sqrt(n). Keeping this in mind, let's consider the given equation.
x^2=25
x=±sqrt(25)
x=±5