11-5(a-b). Work with your team to simplify each rational expression below, showing any 1s. Verify that your simplified expressions are correct by substituting values of x. For each expression, assume the denominator is not equal to zero. x² +6x+9 x +4x b. 2x+8 a. x-9
Percentage
A percentage is a number indicated as a fraction of 100. It is a dimensionless number often expressed using the symbol %.
Algebraic Expressions
In mathematics, an algebraic expression consists of constant(s), variable(s), and mathematical operators. It is made up of terms.
Numbers
Numbers are some measures used for counting. They can be compared one with another to know its position in the number line and determine which one is greater or lesser than the other.
Subtraction
Before we begin to understand the subtraction of algebraic expressions, we need to list out a few things that form the basis of algebra.
Addition
Before we begin to understand the addition of algebraic expressions, we need to list out a few things that form the basis of algebra.
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3-2x
f.
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3(n- 2)
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11-5(a-b).
Work with your team to simplify each rational expression below, showing any 1s. Verify that your simplified
expressions are correct by substituting values of x. For each expression, assume the denominator is not equal to
zero.
x² +4x
b.
2x+8
x² +6x+9
a.
x² - 9
11-7.
mplify the expressions below.
b.
с.
-8x+16
10x + 25
(k-4)(2k+1) . (k– 3)(k – 4),
for x #
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of the variable that need to be excluded.
9 x
d. -.-
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x-2 x+5
X x x
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11-5(a-b).
Work with your team to simplify each rational expression below, showing any 1s. Verify that your simplified
expressions are correct by substituting values of x. For each expression, assume the denominator is not equal to
zero
x²+6x+9
x² -9
x² +4x
b.
2x +8
a.
11-7.
Simplify the expressions below.
b.
C.
5
-forx+--or 3
(k-4)(2k+1) . (k– 3)(k – 4)
5(2k +1)
1
-for k +3,4or-
x²- 8x+16
10x+ 25
for x#--or4
3
2x – x-15
10(k - 3)
²-10x-8"
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