Simplifying Square Roots and Equations

The video tutorial explains how to solve quadratic equations using square roots. It covers four examples, demonstrating the process of isolating the variable, taking the square root of both sides, and including the plus/minus sign to account for both solutions. The tutorial also discusses the importance of rationalizing denominators and simplifying square roots, providing a comprehensive understanding of solving quadratic equations through this method.

What is the solution to the equation x^2 = 36?

• x = 0

• x = -6

• x = 6

• x = 6 or x = -6

Tags

CCSS.8.EE.A.2

Why do we include a plus or minus sign when solving x^2 = 36?

• To simplify the equation

• To ensure the solution is always positive

• To make the equation more complex

• To account for both positive and negative roots

Tags

CCSS.8.EE.A.2

What is the square root of 256?

• 16

• 14

• 18

• 12

Tags

CCSS.8.EE.A.2

What are the solutions to the equation x^2 = 256?

• x = 0

• x = 16 or x = -16

• x = 16

• x = -16

Tags

CCSS.8.EE.A.2

How do you simplify the expression x^2 = 54/25?

• By factoring

• By multiplying both sides by 25

• By adding 25 to both sides

• By taking the square root of both sides

What is the simplified form of the square root of 54?

• 5√6

• 4√6

• 3√6

• 2√6

What is the denominator when simplifying the square root of 54/25?

• 4

• 5

• 7

• 6

Tags

CCSS.8.EE.A.2

What is the first step in solving x^2 = 7/2?

• Multiply both sides by 2

• Divide both sides by 2

• Take the square root of both sides

• Add 2 to both sides

Tags

CCSS.HSN.RN.A.2

Why do we rationalize the denominator in the expression √7/√2?

• To eliminate the square root in the denominator

• To make the numerator larger

• To simplify the numerator

• To add complexity to the equation

What is the simplified form of √7/√2 after rationalizing the denominator?

• √14/5

• √14/4

• √14/3

• √14/2