What is the difference of r² - 14r +19 and 9r² - 12r - 2?
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What is the difference of r² - 14r +19 and 9r² - 12r - 2?
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Answer:
-8r²-2r+21
Step-by-step explanation:
(r² - 14r +19)-(9r² - 12r - 2)
(r² - 14r +19)+(-9r²+12r+2)
combine like terms
-8r²-2r+21