Polynomials Functions Review (2) Division Algorithm and Long Division of Polynomials.
Polynomials review
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Transcript of Polynomials review
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POLYNOMIALS REVIEW
Classifying PolynomialsAdding & Subtracting Polynomials
Multiplying Polynomials
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Remember: Monomials are separated
by _____ or _____ signs.
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But, what is a monomial?
A number or variable or product of numbers and variables.
5x2 6 x
- y2z3 ½xy
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“Poly” means _________________?
Polynomials can be classified according to the number of terms they have.
• ONE TERM – • TWO TERMS – • THREE TERMS -
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5 5 3 6 2x x y z z Classify the following:
3x2 – 8xy4abc
3x2 – 8xy
5x2
a2 + 2ab + b2
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DEGREE………………The degree of a monomial is
determined by adding the exponents of its variables.
So, to find the degree of a POLYnomial, find the degree of each separate MONOmial. The Monomial with the HIGHEST sum determines the degree of the problem.
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5 5 3 6 2x x y z z
23 5x
7 6 4 43y y x m
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Ascending & Descending Order
• Ascending – means to count up! So, order the VARIABLES exponents
from least to greatest.
• Descending – means to count down! So, order the VARIABLES exponents
from greatest to least.
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2 35 4 2x x x 3 24 5 2x x x
2 3 2 424 12 6x y x y x 3 212x y 224x y 46x
2 35 4 2x x x 34x2 x 25x2 3 2 424 12 6x y x y x 2 3 2 424 12 6x y x y x
( of “y” )
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22 5 8x y
2033 8 2x y
6
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Adding & SubtractingPolynomials
2(3 5 6)y y 2(7 9)y 210y 5y 15
2 2(3 3 )a ab b 2(4 6 )ab b 23a 7ab 25b
2(3 2)x (9x 1) 2(7x 4 )x210 5 1x x
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2 2(4 3 5 )x y xy (8xy 26x 23 )y2 22 3 6x xy y
Subtract 28 5x x from
22 6x x23x 2x 5
4(8 6)x 2(4x 2) 4(2x 2 )x4 210 5 8x x
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Multiplying Polynomials34 (3 3 )x x y
412 12x xy 45 (8 5 )x x y 540x 25 4x y
4 3 23 (2 4 4 6)x x x x 6 7x 12 6x 12 5x 18 4x
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2 2 36 ( 4 2 )x y x xy y 46x y 3 224x y 2 412x y
2 2 32 ( 4 7 )x y x xy y 42x y 3 28x y 2 414x y
( 7)( 1)x x 2x 8x 7
( 4)( 2)x x 2x 6x 8
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( 6)( 5)x x 2x 11x 30
( 7)( 3)x x 2x 10x 21( 9)( 3)x x
2x 6x 27
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( 6)( 3)x x 2x 3x 18
( 1)( 8)x x 2 7 8x x
( 2)( 7)x x 2 5 14x x
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Tie Breaker
(3x + 2) (2x + 3)
6x2 + 13x + 6