Quadratic Equations Using Square Roots

Solve using square roots.

• ±81

• ±9

• ±3

• No real solution

Solve using square roots.

• ± 1/4

• ± 9/36

• ± 1/2

• No real solution

2x²= 30

• x= √5

• x= √30

• x= √15

• x= ±5

x²=25

• x = 5

• x = -5

• x = ±25

• x = ±5

What can the roots to a quadratic equation be called?

• zeros

• solutions

• x-intercepts

• none of the choices

What are the roots of quadratic equation?

• Coefficients of the equation

• Solutions to the equation

• The highest exponent of the variable

• The graphical representation of the equation

Solve using square roots.
5b² - 4 = 41

• b = 9, b = -9

• b = 3, b = -3

• b = 8, b = -8

• no solution

Solve using square roots.
4m² - 100 = 0

• m=25, -25

• m=96

• m=5, -5

• m=-96

Solve using square roots.

k² - 6 = 43

• k = √37

• k = 37 or - 37

• k = 7, k = -7

• no real solution

x²−10=19

• x = √29

• x = ±2√9

• x = ±29

• x = ±5√19