Double Jeopardy

Solving quadratic Equations

200

4x² -2x=0

0,1/2

400

x² +10x+21=0

-7

600

6x² =24

x= 2,-2

800

x² -8x+20=0

x=4 +/- 2i

1000

x² +5x+2=0

(-5 +/- √17 )/2

Solving Inequalities

200

-x²+x≥0

[0,1]

400

4x²+21x-18 ≤0

[-6,3/4]

600

(x-3)/(x-4) ≤ 0

[3,4)

800

(x-1)(x-4)(x-5)≥0

[1,4]∪[5,∞)

1000

x³-8x²-x+8 ≥0

[-1,1]∪[8,∞)

Logarithms

200

log10x

1+logx

400

log₄(x ²√ y)

2log₄x+ 1/2 log₄y

600

log₂2⁶

6

800

log₃(x+19)+log₃(x-5)=4

8

1000

5log_bx+8log_bz

log_b(x⁵z⁸)