MATH 0701 Lecture 3: Elementary Algebra Sections 2.1-2.5 - LECTURE NOTES
26 Jun 2018
School
Department
Course
Professor
MATH 0701 / Elementary Algebra / Fall 2017
Temple University / Dr. Ranjini Muhunthan
Lecture Notes 1.4 – 1.7
Notes By: Kirstin Ortiz
Section 2.1 – Multiplication of Integers –
(Objective A) Multiplying signed numbers
6 + 6 + 6 + 6 = 4(6)
-5 + -5 + -5 = 3(-5)
Rules:
Same Sign – (+) (+) = (+)
(-) (-) = +
Different Sign – (+) (-) = (+)
Example 1) Solve.
*Answers on page 3
A) (-8) (4)
B) (-6) (-3)
C) (-3) (-4) (6) (-2)
(Objective B) Raising sign numbers to powers
Rules: Even exponent = positive answer
Odd Exponent = negative answer
Example 1) Solve.
*Answers on page 3
A)
B)
C)
D)
E)
F)
G)
H)
I)
Example 2) Solve.
*Answers on page 3
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Document Summary
Notes by: kirstin ortiz (objective a) multiplying signed numbers. C) (-3) (-4) (6) (-2) (objective b) raising sign numbers to powers. Notes by: kirstin ortiz a = -1 and b = 5. Example 3) translate the following phrases into math expressions and evaluate. *answers on page 3: the product of 5 and -2 increased by 7. 5 decreased by 5 times 9: the product of 5 and negative 4 subtracted from the product of -6 and -4. Example 2) write an expression for each of the following and simplify. *answers on page 3: the quotient of -35 and 7, decreased by 8, the quotient of 48 and -12 subtracted from the quotient of -56 and 8. Section 2. 1 multiplication of integers (objective a) multiplying signed numbers. 144 (objective b) raising sign numbers to powers. Math 0701 / elementary algebra / fall 2017. Section 2. 5 division of integers and order of operations with integers .
