Question

Find the HCF

eg. first expression = 4a -8
=4(a-2)
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Answer 1

Explanation:

ab² + 2a²b + a³ = a(b² + 2ab + a²)

Here variable 'a' is common in all the terms. HCF = a

2) 2ab² = 2 * a * b *b

4a²b = 2 * 2 *a * a * b

6a³ = 2 * 3 * a * a * a

HCF = 2a

2ab² - 4a²b - 6a³ = 2a(b² - 2ab - 3a²)