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OpenStudy (anonymous):
Preform the indicated operation: 4 over a^2+12a+27 + 5 over a^2+10a+21 What are the values that would be excluded from the domain? a. 9, -3 and -7 b. -9, 3, and -7 c. -9,-3, and 7 d. -9, -3, and -7
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OpenStudy (anonymous):
OpenStudy (anonymous):
DENOMINATOR of the first fraction (x+9)(x+3) second fraction (x+7)(x+3) the values that make any parenthesis = 0 -9,-7,-3 so choice d
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