Problem

Perform the indicated operation. See Examples 1−14.Examples 1 Multiply.Examples 2 Multiply...

Perform the indicated operation. See Examples 1−14.

Examples 1 Multiply.
Examples 2 Multiply.
2(−10) = −20
Examples 3 Multiply.
Examples 4 Multiply.
Examples 5 Multiply.
5(−1.7) = −8.5
Examples 6 Multiply.
−18(−3) = 54
Examples 7 Multiply.
a. 7(0) (−6)
b. (−2) (−3) (−4)
c. (−1) (−5) (−9) (−2)
Solution:
a. By the order of operations, we multiply from left to right. Notice that because one of the factors is 0, the product is 0.
b. Multiply two factors at a time, from left to right.
c. Multiply from left to right.
Examples 8 Evalute.
a. (−2)3
b. −23
c. (−3)2
d. −32
e.
Solution:
Example 9 Find the reciprocal of each number.
Example 10 Use the definition of the quotient of two numbers to find each quotient.
a. −18 ÷ 3
b.
c.
Solution:
Example 11 Divide.
Example 12 Divide
Example 13 Divide
Example 14 Divide, if possible.
a. is undefined.
b.