Warm-Ups


1	The LCD is not used in solving equations with rational expressions.
		A)	TRUE
		B)	FALSE


2	To solve the equation x² = 8x, we divide each side by x.
		A)	TRUE
		B)	FALSE


3	An extraneous solution is an irrational number.
		A)	TRUE
		B)	FALSE


4	Use the following equations for Questions 4–10. To solve Eq. (a), we must add the expressions on the left-hand side.
		A)	TRUE
		B)	FALSE


5	Both 0 and 2 satisfy Eq. (a).
		A)	TRUE
		B)	FALSE


6	To solve Eq. (a), we multiply each side by 3x² - 6x.
		A)	TRUE
		B)	FALSE


7	The only solution to Eq. (b) is 4.
		A)	TRUE
		B)	FALSE


8	Equation (b) is equivalent to 4 + 2x = 3x.
		A)	TRUE
		B)	FALSE


9	To solve Eq. (c), we multiply each side by x² - 1.
		A)	TRUE
		B)	FALSE


10	The numbers 1 and -1 do not satisfy Eq. (c).
		A)	TRUE
		B)	FALSE

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