7.3A Notes - Solving Quadratic Equations Using Square Roots

• Add 31 to each side.
• Divide each side by 4.
• Subtract 31 from each side.
• Multiply each side by 4.

Simplify the expression.

√20

• √4
• 2√5
• 5√2
• √10

• Subtract 9 from each side.
• Divide each side by 3.
• Take the square root of each side.