Algebra wk 1 notes

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Foose
College Algebra
Wk 1

Lecture: Pg 62

Types of numbers
Natural - {1, 2, 3….}
Whole- {0, 1, 2…}
Integer-{ -2, -1, 0, 1, 2…}
Rational -numbers that terminate or repeat [Ex: 5, 4.124, 2/3 = ./6]
Irrational- pie, e(element) etc etc.
Real - All of the above
Complex - Imaginary numbers.

Four times the sum of y and three is -1.
4( y + 3 ) = -1

Two-thirds is equal to twice the sum of n and one-fourth.
2/3 = 2( n + ¼ )

Commutative property of

(+) a + b = b + a

(x) ab= ba

Associative property of

(+) ( a + b ) + c = a + ( b + c )

(x) ( ab )c = a( bc )

Additive inverse
A + (-a) - 0

Distributive property
A (b+c) = ab+ac

Absolute Value
2 |x + 3|

Order of Operations
Parenthesis
Exponents
Roots
Multiplication
Division
Addition
Subtraction

Rules of exponents

Product Rule

Power Rule

Quotient Rule

Scientific Notation
36,800,00
3.68 x 10(7 pow