Factoring and Solving Quadratics

• No solution

Solve by factoring:  4x² + 11x - 3 = 0

• x = -3/4 and x = -1
• x = 4 and x = 3
• x = 1/4 and x = -3
• x = -1/4 and x = 3

Solve x²− 4 = 0 (solve using square roots)

• 2 and -2

• 4 and -4

• 16 and -16

• 8 and -8

The solutions of the quadratic equation

x²+2x-15=0 are (hint: find the zeros) FACTOR

• x = 3 or x = 5

• x = 5 or x = -3

• x = -5 or x = 3

• x = -3 or x = -5

Solve by factoring.

x² + 15x + 44 = 0

• {-8, 2}

• {-7, 5}

• {-11, -4}

• {-11}

x²-7x=0

• x= 0, -7

• x= 0, 7

3x²+9x-30=0

• x= 2, -5

• x= 5, -2

• x= -5, -2

x²+4x-32=0

• x= -8, 4

• x= 8, -4

• x= -8, -4

x²=18x-81

• x= -9, -9

• x= 9, 9

• x= -9, 9

 $16x^2-81$  Factor:

•  $\left(4x-9\right)^2$  

•  $\left(2x-9\right)^2$  

•  $\left(4x\ +\ 9\right)^2$  

•  $\left(4x+9\right)\left(4x-9\right)$