Solving Quadratics by Factoring Exit Ticket 2

Solve by factoring.

z² - 18z + 81 = 0

• z = 9

• z = -9

• z = 9 or z = -9

What are the solutions to this equation? (x-3)(x+2)=0

• x=3,-2

• x=-3,2

• x=2,3

• x=3,2

Put the following equation into standard form

n² + 8 = 6n

• n²+8 = 6n+0

• n²+8 +6n=0

• n²+8 -6n=0

• n² -6n+8=0

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

Solve the equation by factoring and finding the x intecepts

x²+ 6x - 4 = 36

• x = -7, 7

• x = 4, -10

• x = -4 +- √7

• x = 10, -4

Convert to STANDARD FORM

(x+4)(x-3) = 0

• x²+x-3

• x²+x+4

• x²+x-12

• x²+x+12

What are the solutions for:
x²+6x+8=0

• x=4 and x=2
• x=-8 and x=-1
• x=-4 and x=-2

Tags

CCSS.HSA-REI.B.4B

Solve by factoring: x² - 9x + 20 = 0

• x = -4 and x = -5
• x = 20 and x = -9
• x = 4 and x = 5
• x = -4 and x = 5

Tags

CCSS.HSA-REI.B.4B