LA1 Progress Check Solve by Factoring/Quadratic Formula

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

Solve by factoring:  2x²+ 7x + 6 = 0

• x= 3/2 and x = 2
• x = -3/2 and x = -2
• x = 6 and x = 7
• x = -6 and x = -7

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

What is this?

• This is the speed of light formula.
• This is the quadratic formula.
• This is the zero product property.
• This is scary.

The Quadratic Formula always works.

• True

• False

Which method(s) require the equation be set equal to zero to start?

• Factoring

• Quadratic Formula

• Square root property

• Complete the square

• This is the final answer

Which is the general form of a quadratic?

Check all that apply to solve by factoring

• Equation must be set equal to zero

• The expression must be factored

• Any factor that contains a variable must be set equal zero and solved

• There will be 2 answers