Video Snippets on Math Topics
(Algebra & Pre-Algebra)

#1

Click on Video
for tip on
"The Order of Operations"

Example:
4 - (10 -8)
3 · 2 =
4 - (2)
3 · 2 =
4 - 8 · 2 =
4 - 16
-12

#2

Click on Video
for tip on
"Combining Like Terms"
&
"Multplying Expressions"

Combining Terms:
4x
2 - 2x - x2 - 6x = 3x2 - 8x
Multiplying Expressions:
(3a
2bc4)(4a3b3c5) = 12a5b4c9

  #3

Click on Video
for tip on
"Adddtion & Subtraction
of Signed Numbers"

Examples:
6 + 4 = 10
-6 - 4 = -10
-6 + 4 = -2
6 - 4 = 2

#4

Click on Video
for tip on
"Multiplication & Division
of Signed Numbers"

Examples:
(3)(4) = 12
(-3)(-4) = 12
(-3)(4) = -12
3(-4) = -12
12 ÷ (-4) = -3
-15 ÷ (-3) = 5

#5

Click on Video
for tip on
"Addition & Subtraction
of Polynomials"

Examples:
3x
2 + x - 2 + (4x2 - 5x - 6) =
7x
2 - 4x - 8

5x2 - x + 3 - (2x2 + 3x + 4) =
3x
2 - 4x - 1

#6

Click on Video
for tip on
"Factoring Greatest Common Factor"

Examples:
5x - 15 = 5(x - 3)

12x2y4 -8x3y2 + 4x2y =
4x
2y(3y3 - 2xy + 1)

#7

Click on Video
for tip on
"Factoring Difference of Two Squares"

Examples:
x2 - 25 = (x - 5)(x + 5)

9x2y2 - 49 = (3xy + 7)(3xy - 7)

1 - 4x2 = (1 + 2x)(1 - 2x)

#8

Click on Video
for tip on
"Solving Equations"

Example:
5(x - 3) + 2 = 5(2x-8) - 3

 

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