Solving a Quadratic Equation by Factoring

Solve the following quadratic equation: $x^2-6x-7=0$  

•  $x=7\ \ \ \&\ \ \ x=-1$  

•  $x=1\ \ \ \&\ \ \ x=-7$  

•  $x=0$  

•  $x=\frac{-7}{5}$  

Tags

CCSS.HSA-REI.B.4B

Solve the following quadratic equation: $4x^2-9=0$  

•  $x=\frac{3}{2}$  &  $x=-\frac{3}{2}$  

•  $x=\frac{2}{3}$  & $x=\frac{-2}{3}$  

•  $x=\frac{9}{4}$  

•  $x=\frac{4}{9}$  

Tags

CCSS.8.EE.A.2

Solve the following quadratic equation: $5x^2=10x$  

•  $x=-2$  

•  $x=2$  

•  $x=2$  & $x=0$  

•  $x=-2$  & $x=0$  

Tags

CCSS.HSA-REI.B.4B

Solve the following quadratic equation: $x^2-13x-30=0$  

•  $x=3\ \ \ \&\ \ \ x=10$  

•  $x=-3\ \ \ \&\ \ \ x=-10$  

•  $x=-2\ \ \ \&\ \ \ x=15$ 

•  $x=2\ \ \ \&\ \ \ x=-15$  

Tags

CCSS.HSA-REI.B.4B

Convert x² - 9x + 20 to factored form and solve.

• (x-10)(x+2); x = -2, 10
• (x+4)(x+5); x = -5, -4
• (x-4)(x-5); x = 4, 5
• Not factorable

Tags

CCSS.HSA-REI.B.4B