Solving Equations/Quadratics

1 step equations

100

10 + x = 47 

x = 37

200

x - 20 = 55

x = 75

300

93 = 3x 

x = 31

400

-162 = 18x

x = -9

500

-17.5x = -113.75

x = 6.5

2 step equations

100

20 + 2x = 50 

x = 15 

200

5x - 10 = 70 

x = 16 

300

3b - 39 = -78 

b = -13

400

-48 - x = -39

x = -9

500

2 (x + 10) = -30

x = - 25

Distributive Property

100

Simplify the expression.

2( x + 10)

2x + 20 

200

Simplify the expression.

7( 6 + x)

42 + 7x 

300

Simplify the expression.

-4( x - 24)

-4x + 96

400

Simplify the expression.

9( -4x - 23)

-36x - 207

500

Simplify the expression.

-1.5x( 2x² - 15x + 23.4)

-3x³ + 22.5x² - 35.1x 

Quadratic Formula

100

Determine the a value in the quadratic.

4x² + 23x - 230

a = 4 

200

Determine the b value in the quadratic.

x² - 23x + 111.5

b = -23

300

Use the quadratic formula to find the solutions/roots.

2x² + 41x + 144

x = -4.5 and x = -16

400

Use the quadratic formula to find the solutions/roots.

9x² - 12x + 4 

x = 2/3

500

Use the quadratic formula to find the solutions/roots.

2x² - 7x + 12

No solution

Mystery

100

A right angle is equal to ... 

90 degrees

200

All of the angles in a triangle MUST add up to...

180 degrees

300

Determine the slope of the equation y = 23 - 11x

-11

400

A LINEAR equation must be in the form...

y = mx + b

500

What is the formula to find the volume of a cube or rectangular prism?

V = lwh