Solving Quadratics Methods

• -2, 4
• -8
• ±8
• No real solution

Tags

CCSS.HSA-REI.B.4B

• -4, 2
• -2, 4
• -16
• -4

Tags

CCSS.HSA-REI.B.4B

Find the zeros of this quadratic.

• b=4/5, b=3

• b=4, b=-3

• b=1/5, b=3

• b=4/5, b=-3

Tags

CCSS.HSA-REI.B.4B

Solve the quadratic equation by factoring
a² + 10a + 21 = 0

• ± √21

• -3 , -7

• 3 , 7

• 28 , -7

Tags

CCSS.HSA-REI.B.4B

Match the following.

• By graphing

• By factoring

• Solve using the Zero-Product Property

• Using square roots

Tags

CCSS.HSA-REI.B.4B

Match the following methods to solve quadratic equations with the scenario it is best used in

• when b is an even number if a=1

• SQUARE ROOTS

• can be used in all cases

• FACTORING

• when there is no "bx" term

• QUADRATIC FORMULA

• to check solutions

• GRAPHING

• when the equation is factorable

• COMPLETING THE SQUARE

Tags

CCSS.HSA-REI.B.4B

Select the solutions to the equation

4x² + 11x + 7 = 0

• x = - 1.75

• x = 6

• x = - 1

• x = 1

What are the two methods of solving quadratic equations?​ (a)   ​ (b)  

• Factoring

• Quadratic Formula

• Plugging in numbers

• Guess and check

• Asking Ms. Casale

Tags

CCSS.HSA-REI.B.4B

To solve a quadratic you can ​ (a)   if the ​ (b)   is equal to a ​ (c)   . Otherwise you can complete the square if the ​ (d)   value is one and the b value is ​ (e)   . Most other quadratics should be solved using the quadratic formula.

• factor

• discriminant

• perfect square

• a

• even

• positive number

• b

• c

• odd

• vertex

Tags

CCSS.HSA-REI.B.4B

What are the solutions to the quadratic equation?

• x = -4

• x = 1

• x = -1

• x = 2

• x = 4