Chapter 7
7-2 multiplying and dividing rational
expressions
7-2 multiplying and dividing rational
expressions
7-2 multiplying and dividing rational
expressions
Homework:
page 378 (1-27) odd
page 383 (1-33) odd
7-2 multiplying and dividing rational
expressions
7-2 multiplying and dividing rational
expressions
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Homework: p 388/389 (1-37) odd
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Another way to write a radical expression is
with a rational exponent:
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homework: p 394-395 (1-47) odd, except
27 and 29
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Warm Up
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A radical equation is an equation that has a
variable in a radicand (or variable with a
fractional exponent.)
If the radical has index 2, the equation is a
square root equation.
To solve a radical equation, isolate the radical
expression, then raise both sides of the
equation to the same power.
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page 400 (1-29) odd

find f(g(x)) and g(f(x))

Since an inverse exchanges x values with the
y values, to find an inverse of an equation
you can interchange x and y, and then solve
the equation for y.

Find the inverse for each function.
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homework
page 406 (1-11, 23-41) odd
page 416 (5-21) odds – only find the inverse
functions, you do not need to graph these