Quadratic Formula Part 3

Determine the values of
a, b, and c for
the quadratic equation: 
4x² – 8x = 3

• a = 4, b = -8, c = 3
• a = 4, b =-8, c =-3
• a = 4, b = 8, c = 3
• a = 4, b = 8, c = -3

Solve using the quadratic formula.
2x² - 9x - 35 = 0

• x = 7/2, x = -6
• x = -5/2, x =5
• x = -3/7, x =6
• x = -5/2, x = 7

Tags

CCSS.HSA-REI.B.4B

Solve using the quadratic formula.  $f\left(x\right)=2x^2-4x+7$  

•  $\frac{2\pm2i\sqrt{10}}{2}$  

•  $\frac{4\pm\sqrt{40}}{4}$  

•  $\frac{2\pm i\sqrt{10}}{2}$  

•  $\frac{2\pm2i\sqrt{40}}{4}$  

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

Solve using the Quadratic Formula: $-x^2+4x=13$  

•  $2\pm3i$  

•  $-2\pm3i$  

•  $2\pm i\sqrt{17}$  

•  $-2\pm i\sqrt{17}$  

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

Identify the 'a' value: y = 16x² -8x -24

• 16
• 8
• -8
• -24

What should you do first in solving this equation?
x² + 6x - 13 = 3

• Get factored form
• Write down: a=1, b=6, c=-13
• Make it equal 0 by subtracting 3 on each side
• Type it all in a calculator.

Tags

CCSS.HSA-REI.B.4B

What is this formula?

• This is the standard formula.

• This is the quadratic formula.

• This is the square root formula.

• This is the Pythagorean formula

Tags

CCSS.HSA-REI.B.4B

• No Solution

Tags

CCSS.HSA-REI.B.4B

Tags

CCSS.HSA-REI.B.4B

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7