Quadratics

Find GCF

100

12k - 18 

6 (2k -30 

200

5x²-45=0 

x = 3        or        x + -3

300

3x²-6x-45=0 

x = 5     or     x = -3

400

40x⁸y+64x⁴y

(5x⁴+8)

500

14m⁶ -35m³-7m2

7m²(2m⁴-5m-1)

What are the powers of "i" ?

100

i¹ = ? 

i¹

200

i² = ?

-1

300

i³ = ?

-i

400

i⁴ = ?

1

500

i⁵ = ?

i

Solving trinomials

100

n²-n-72

(n-9) (n+8)

200

w²-15w+26

(w-13) (w-2)

300

c²+2c-48

(c+8) (c-6)

400

2k²-16k-40 

2 (k-8k-20)

500

5z²-25z+30

5 (z-5z+6)

The difference of perfect squares

100

x²-4

(x+2) (x-2)

200

y²-81

(y+9) (y-9)

300

m²n²-49

(mn+7) (mn-7)

400

9x²-25y⁴

(3x+5y²) (3x-5y²)

500

72r²-2s²

2 (36r⁶-s²)   

Simplified: 2(6r+s) (6r³-s)