Factoring to Solve Quadratic Equations

Tags

CCSS.HSA-REI.B.4B

Tags

CCSS.HSA-REI.B.4B

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

• Get factored form
• Find two numbers which add to make 6 and multiply to make -13
• Make it equal 0 by subtracting 3 on each side
• Type it all in a calculator.

Tags

CCSS.HSA-REI.B.4B

• x = -1

• x = -1 or x = 1

• x = 1

• x = -2 or x = 5

Tags

CCSS.HSA-REI.B.4B

Write in standard form: 8x = -5y + 3

• 8x - 5y = 3

• 8x + 5y = 3

• -8x - 5y = 3

• -8x + 5y = 3