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Popular >

factor 20ab^2-5a^3b

Solution

factor

20 a b^{2} - 5 a^{3} b

Solution

5 ab (4 b - a^{2})

Solution steps

20 a b^{2} - 5 a^{3} b

Apply exponent rule:

a^{b + c} = a^{b} a^{c}

a b^{2} = abb, a^{3} b = a a^{2} b

= 20 abb - 5 a a^{2} b

Rewrite

20

as

4 \cdot 5

= 4 \cdot 5 abb - 5 a a^{2} b

Factor out common term

5 ab

= 5 ab (4 b - a^{2})

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Frequently Asked Questions (FAQ)

What is factor 20ab^2-5a^3b ?
The solution to factor 20ab^2-5a^3b is 5ab(4b-a^2)