Solve the quadratic equation by factoring.y2 + 5y = -4
A. y = 1 or y = -4
B. y = 4 or y = 1
C. y = -1 or y = -4
D. y = -1 or y = 4
Answer: C
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Find the value(s) of the variable for which the rational expression is undefined.
A. 0 B. -7 C. 7 D. -4, 0, 4
If 
and 
are both right angles, then one can conclude that:
A. a? b B. b? d C. a || b D. None of These
Simplify by factoring.
A. 7
B. 7y2
C. 7y
D. 7