The sum of two expressions is 61x^2 - 18y^2 . If one of them is 14x^2 + 6xy - y^2 , find the other.
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Answer:
47x² - 17y² - 6xy
Step-by-step explanation:
a + (14x² + 6xy - y²) = 61x² - 18y²
a = 61x² - 18y² - 14x² - 6xy + y²
a = 47x² - 17y² - 6xy
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