Question

Find HCF and LCM of 4x² - 25y² and 10x - 25y.

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Answer 1

The greatest common factor (GCF or GCD or HCF) of a set of whole numbers is the largest positive integer that divides evenly into all numbers with zero remainder. For example, for the set of numbers 18, 30 and 42 the GCF = 6.