Solve the Quadratics by Factoring
x2 + 2x - 3 = 0
x = -3,1
Solve the equation by taking the square root :
x2=16
x = +- 4
x2 − 12x = 0
(x - 6)2 − 36 = 0
x2 − 4x + 4 = 0
(2)
Solve the Quadratics by Factoring
x2 - 10x + 16 = 0
x = 2, 8
Solve the equation by taking the square root :
7x2=63
x = +-3
x2 + 14x = 0
(x + 7)2 - 49 = 0
x2 + 4x + 3 = 0
(-1, -3)
Solve the Quadratics by Factoring
x2 - 5x = -6
x = 2 and 3
Solve the equation by taking the square root :
x2 + 9=5
No Solution
x2 + 4x = 0
(x + 2)2 - 4 = 0
4x2 + 8x + 7 = 4
(-1/2, -3/2)
Solve the Quadratics by Factoring
6x2 - x = 2
n = -1/2 and 2/3
Solve the equation by taking the square root :
(x-4)2-16=0
x = 0 and x=8
x2 = 8x
(x - 4)2 - 16 = 0
4x2 − 2x −25 = −2x
(5/2, -5/2)
Solve the Quadratics by Factoring
2x2 -8 = 31x - 2x2
x = -1/4 and 8
Solve the equation by taking the square root :
(x-3)2-18=0
x = 3 +- 3sqrt2
or
x = 7.24 or -1.24
Draw a picture of completing the square
2x2 + 14x + 20 = 0
x = -2 or -5