Multiply, Dividing; Exponents; Square
Roots; and Solving Equations
To Multiply/Divide Integers:
o If you are multiplying or dividing 2 numbers with the
same sign, the answer will be positive.
o If you are multiplying or dividing 2 numbers with a different sign, the answer
will be negative.
Objective 1: Multiply/Divide integers w/ the same
sign
Objective 2: Multiply/Divide integers w/ a
different sign
Objective 3: Evaluate numbers in exponential form
oWhen evaluating a negative number in exponential form, 2 conditions must
be true to get a positive answer
oYou must have an even exponent
oYour negative number must be in parenthesis
*If both conditions are not met, you answer is negative!!!
Objective 4: Solving equations containing an
unknown factor
•To solve an unknown factor, write a related division
equation in which the product is divided by the unknown factor
o 9x = 63
o 30y = 63
Objective 5: Evaluate square roots
•Square root: A base number that can be squared to equal a given number
•Every positive number has two square roots, a positive root and a negative root
o Find the square roots of each number
o 81
o 25
• The radical sign is
used when you only want the Principal square root, which is defined as the
positive square root of a number
