How do you factor #4a^2 - 5ab #?

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Answer 1 · 2017-10-02T17:39:43

#a(4a-5b)#

To factor a number or expression means to write it as the product of its prime factors.

In Algebra, always check for a common factor first.

#4a^2-5ab" "larr HCF = a#

Divide #a# out of each term:

#= a(4a-5b)" "larr# there are now 2 factors

Answer 2 · 2017-10-02T17:40:24

#a(4a-5b)#

#"there is a "color(blue)"common factor ""of a in both terms"#
#"which can be taken out"#

#rArr4a^2-5ab=a(4a-5b)larr" factored form"#