Page 127 - Math Course 1 (Book 1)
P. 127
Exponents
Write the expression using exponents.
Your Turn! 9 • a • a • a • b • b • b • b • b.
Write Expressions Using Exponents A. 9ab5
B. 9a³b5
Write the expression using exponents. C. (9ab)8
3 • 3 • 3 • 3 • 3 • 3 D. 9a8b8
A. 3² • 3³ Answer
B. 3 • 6
C. 35
D. 36
Answer
MO. 4 - L1b
Evaluate Expressions
Write the expression using exponents.
m • m • m Containing Exponents
A. 3m
B. m³
C. m • m³ Concept Summary
D. m4
Answer
Order or Operations
Words Example
Write the expression using exponents. Step 1 Simplify expressions (3+ 4)² + 5 • 2
(–6)(–6)(–6)(–6) inside grouping symbol = 7² + 5 • 2
f rst.
A. 64
B. –64 Step 2 Evaluate all powers. = 49 + 5 • 2
C. –6 • 4
D. (–6)4 Step 3 Do all multiplications or = 49 + 10
divisions in order from
Answer left to right.
Step 4 Do all additions or = 59
subtractions in order
from left to right.
Write the expression using exponents.
(4 – 2x)(4 – 2x).
A. (4 – 2x)²
B. 4 – 2x²
C. 2(4 – 2x)
D. 4² – 2x²
Answer
119
