Solving multi-step problems using quadratic equations in one variable

The first step in solving quadratic equations is to . . .

• Factor

• Write the equation in standard form

• Use the quadratic formula

• Complete the square

Tags

CCSS.HSA-REI.B.4B

• -3

• 1

• 3

• -1

Tags

CCSS.HSA-REI.B.4B

• 4,-16

• 14.544, -2.544 

• 11,1

• -2,-6

Tags

CCSS.HSA-REI.B.4B

Solve the following equation for x:
0 = (x − 4)² − 15

• 4 ± √15
• 19
• 2 ± √15
• −4 ± √15

Tags

CCSS.HSA-REI.B.4B

x² - 16 = 0

• x = 4

• x = -4

• x = -4 and 4

• x = 16 and -16

Tags

CCSS.HSA-REI.B.4B

Find the zeros of the quadratic equation y=4(x+9)²-36

• x=-9+√6 & x=-9-√6
• x=3 & x=-3
• x=-6 & x=-12
• so solution

Tags

CCSS.HSA-REI.B.4B

What should you do first in solving this equation by completing the square?

x² + 6x - 13 = 3

• Factor

• Write down: a = 1, b = 6, c = -13

• Subtract 3 from both sides.

• Add 13 to both sides.

Tags

CCSS.HSA-REI.B.4B

Tags

CCSS.HSA-REI.B.4B

What is the most appropriate method for solving the following quadratic?  $5\left(x+3\right)^2+9=19$  

• Factoring

• Isolation (Square Roots)

• Completing the Square

• Quadratic Formula

Tags

CCSS.HSA-REI.B.4B

Tags

CCSS.HSA-REI.B.4B