Review Solve Quadratics by Factoring Completing the Square Quadratic Formula

What is this formula?

• Pythagorean Formula

• Quadratic Formula

• Distance Formula

• Correlation Formula

Use the quadratic formula to find the solutions for

y = -x² - 5x + 12

• No Real Solution

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Solve by completing the square. 
 x² − 10x - 11= 0

• x = −1 and 11

• x = 1 and −11

• x = −10 and 11

• x = −5 and 25

What would be the best method to solve this quadratic? (You don't have to solve!)

• Factoring

• Square roots

• Completing the square

• Quadratic formula

What would be the best method to solve this quadratic? (You don't have to solve!)

• Factoring

• Square roots

• Completing the square

• Quadratic formula

x² - 14x - 51 = 0

• x= 17 and -3

• x= -17 and 3

• x= -17 and -3

• x = 17 and 3

Solve.

3x² + 5x = 12

• x = -4/3, x = 3

• x = 4/3, x = -3

• x = -1, x = 4

• x = 1, x = -4

Which equation matches these solutions? x = 5 and x = -7

• (x + 5)(x - 7) = 0

• (x - 5)(x + 7) = 0

• (x + 5)(x + 7) = 0

• (x - 5)(x - 7) = 0

x² - 16 = 0

• x = 4

• x = -4

• x = -4 and 4

• x = 16 and -16

Choose the best method to solve this quadratic:

​ (a)  

3x² - 21 = 3

• Square Root Method

• Factoring Method

• Quadratic Formula