Transcript
Using the Principles Together
Multiplication Principle
Addition Principle
Simplifying Algebraic Expressions
Algebraic Expressions
Factor
ALGEBRA? What is it?
• Variables
• Constants
• Terms
• Factors
• Coefficients
Like (or similar) terms
Combining Like terms
Parentheses
Equivalent Equations
The Addition Principle
Notation notes
Find the value of x!
3(2x – 4) = 4(2x+5)
6x – 12 = 8x + 20-12 – 20 = 8x – 6x
2x = -32
x = -16
Count and Simplify it!
- +
x
Count the value of this function!
f(x) = 6x3+ - , f(3) = ?
f(3) = 6. 33+ -
= 6. 27 + -
= 162 + -
f(3) = 166
Find the value of x !
5(x+3) = 3(2x – 1) +6
5x + 15 = 6x – 3 +65x + 15 = 6x + 36x – 5x = 15 – 3
x = 12
x = 12
Find the value of x !
4x (x+3) – 4 = 3x (x + 5)
x = 4 or x = -1
Simplify It!
(b5 x b10 x b15)25 : b5 x b3
b748
Count the value of this formula!
x5 + 5x4y + 10x3y2 +10x2y3 + 5xy4 + y5
x = -4 and y =2
-32
Simplify it!
1
Count and Simplify it !
1
The length of a rectangular field is7/5 its width. If the perimeter of the field is 240 meters, how the length and width of the field?
LENGTH = 70 METERS, WIDTH = 50 METERS
COUNT THIS:
One day, Baa, Beeh, Sat, and Rio go to RachMart to buy some fruits. Baa buys one dragon fruit, two star fruits,
three snake fruits, four jack fruits, and he pays Rp.31.750,-. Beeh buys three star fruits, five jack fruits,
four snake fruits, two dragon fruits, and he pays Rp.43.250,-. Sat buys four jack fruits, one dragon fruit,
two star fruits, eight snake fruits, and he pays Rp.43.000,-. Rio buys four snake fruits, ten jack fruits,
three star fruits, two dragon fruits, and he pays Rp.63.250,-. How price of a star fruit, a jack fruit, a
dragon fruit, and a snake fruit?
ANALYZE AND COUNT IT
ANSWER :
DRAGON FRUIT Rp 1.500,-STAR FRUIT Rp 3.750,-SNAKE FRUIT Rp 2.250,-JACK FRUIT Rp 4.000,-
This presentation is done by:
Atik LatifahEnti Pebriani
Jeffa LVBRachmat SW
Revaldo
Math - A 2012
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