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Section 56 .ppt
1. Exponent Rules and Dividing
Polynomials
5.6
1. Divide exponential forms with the same base.
2. Divide numbers in scientific notation.
3. Divide monomials.
4. Divide a polynomial by a monomial.
6. Simplify expressions using rules of exponents.
5. Use long division to divide polynomials.
3. Quotient Rule for Exponents
If m and n are integers and a is a real number,
where a 0, then
.
m
m n
n
a
a
a
3
7
2
2
2
2
2
2
2
2
2
2
2
2
2
2
3
7
4
4
3
7
2
1
2
2
2
2
2
2
2
2
2
2
2
2
2
1 1 1
1 1 1
4. When an equation in one variable is solved the answer is a point on a line.
Divide:
14
6
j
j
3
5
u
u
3
6
m
m
2
2
3
5
y
x
y
x
2
u 8
1
j
8
14
6
j
j
9
3
6
m
m 9
1
m
y
x3
6. Divide and write the result in scientific notation.
7
3
2.34 10
3.6 10
7
3
2.34 10
3.6 10
7 3
0.65 10
4
0.65 10
3
6.5 10
Note: This is not in scientific
notation.
7. When an equation in one variable is solved the answer is a point on a line.
Divide and write the result in scientific notation:
2
4
10
88
1
10
964
9
.
.
15
5
10
6
6
10
32
1
.
. 20
10
2
.
21
10
0
2
.
6
10
3
5
.
11. Dividing Monomials
1. Divide the coefficients or simplify them to
fractions in lowest terms.
2. Use the quotient rule for the exponents with like
bases.
3. Write the final expression so that all exponents
are positive.
12. When an equation in one variable is solved the answer is a point on a line.
Divide:
7
2
4
5
42
28
q
p
r
q
p
3
2
4
5
4
4
y
xy
xy
xy 64
43
3
3
3
2
q
r
p
15. Divide.
6 2 3
2
36 9 6
3
x y x y x
x y
6 2 3
2 2 2
36 9 6
3 3 3
x y x y x
x y x y x y
4 2
12 3
x y x
xy
Divide each term in the
polynomial by the monomial.
16. If a, b, and c are real numbers, variables, or
expressions with c 0, then
Dividing a Polynomial by a Monomial
Divide each term in the polynomial by the
monomial.
.
a b a b
c c c
17. When an equation in one variable is solved the answer is a point on a line.
Divide:
2
2
5
3
5
15
30
xyz
xyz
yz
x
2
2
2
4
4
4
28
16
hk
k
h
hk
hk
h
k
k
7
4 2
3
6 3
2
z
x
19. Exponents Summary
Zero as an exponent: a0 = 1, where a 0.
Negative exponents:
Product rule for exponents:
Quotient rule for exponents:
Raising a power to a power:
Raising a product to a power:
Raising a quotient to a power:
1 1
, ,
n n
n n
a a
a a
m n m n
a a a
m
m n
n
a
a
a
n
m mn
a a
n n n
ab a b
n n
a b
b a
n
n
n
a a
b b
20. Use the quotient rule for exponents.
Use the power rule for exponents.
20
5
6
3
2
4
m
m
5
4
3
2
2
4
m
m
14
2
m
20
6
32
64
m
m
2
1
1
m14
Evaluate coefficients.
Reduce coefficients.
23. When an equation in one variable is solved the answer is a point on a line.
Simplify:
p
n
m
p
n
m
3
1
2
1
6
3
3
7
2
4
6
3
y
y
3
2
7
3
p
n
m
13
24
1
y