Quadratics

Factoring

100

Solve by factoring:

x^2-5x-14=0

7 and -2

200

Solve by factoring:

2x^2+2x-12=0

2 and -3

300

Solve using the factoring:

2x^2+3x-20=0

5/2 and -4

400

Solve by factoring: 

10x^2=-13x+3

x=1/5,-3/2

500

Solve by factoring: 

81x² - 49=0

x=+-7/9

Solving using Square Roots

100

Solve for the roots.

(x-3)^2=25

-2 and 8

200

Solve for the roots.

x^2-49=0

+7 and -7

300

Solve for the roots.

x^2+16=0

no solution

400

Solve for the roots.

9x^2 + 5 = 41

-2 and 2

500

Solve for the roots.

2(4x+1)^2-200=0

-10 and 10

♫ Quadratic Formula ♫

100

Solve the following equations by  quadratic formula

n^ 2 − 2n − 3 = 0

3 and -1

200

Solve the following equations by quadratic formula

k ^2 − 12k + 23 = 0

6+-\sqrt13

 

300

Solve using the quadratic formula

x^2-4x+4=0

2

400

Solve the following equations by completing the square

p^ 2 + 14 p − 38 = 0

-7 +- \sqrt87

500

Solve using the quadratic formula

2x^ 2 − 7x − 13 = −10

(7+-\sqrt73)/4

Proportions

100

1/7=16/(d-28

140

200

17/(9k-9)=5/7

3.64

300

8/(c+28)=5/c

46.67

400

1/(s+12)=9/(s-27)

-16.88

500

4/7=(h+26)/(h+15)

40.67 or 122/3

(Blank)

400

x⁴-20x²+64=0

x = 4, -4, 2, -2

500

x³+3x²-16x-48=0

x = 4, -4, -3