Math 2 Semester 2

Solved by factoring

100

x^2-64=0x

x=8,x

200

X^2-4x-21=0

x=7,x

300

x^2-14x+49=0

x=7

400

2x^2+5x+3=0

x=-3/2,x

500

3x^4-9x^5=0

x=1/3

Trinomials

100

x^2 - 5x + 6 = 0

x=2,3

200

x^2 + 6x + 8 = 0

x=4,-2

300

x^2 - 2x - 24 = 0

x=6,-4

400

x^2 + 3x- 40 = 0

x=-8,5

500

x^2 - x - 72 = 0

x=9,-8

Perfect Squares

100

x^2 - 10x + 25 = 0

x=5

200

3x^2 - 12 = 0

x=2,-2

300

4x^2 + 24x + 36 = 0

x=-3

400

5x^2 - 20x = 0

x=0,4

500

2x^2 - 28x + 98 = 0

x=7

Slip & slide/ Grouping

100

2x^2 + 5x + 2 = 0

x=-1/2,-2

200

3x^2 - 10x + 3 = 0

x=1/3,3

300

2x^2 + 7x - 4 = 0

1/2,-4

400

4x^2 - 15x - 4 = 0

-1/4,4

500

6x^2 + 11x - 10 = 0

x=-5/2,2/3

Higher Degree Polynomials

100

x^3 - 9x = 0

x=0,3,-3

200

x^3 + 4x^2 - 5x = 0

x = 0, -5, 1

300

2x^3 - 8x^2 = 0

x = 0, 4

400

x^4 - 5x^2 + 4 = 0

x = 2, -2, 1, -1

500

x^3 - 3x^2 - 4x + 12 = 0

$x = 2, -2, 3$