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How do you factor #3cd – 6cy + 2xd – 4xy#?

Answer 1

Julia Adams

#(d-2y)(3c+2x)#

It is a matter of spotting the grouping and perhaps a bit of experimenting

#3c(d-2y)+2x(d-2y)" "# I struck lucky first time

The common factor is #(d-2y)# so we have

#(d-2y)(3c+2x)#

'~~~~~~~~~~~~~~~~~~~~~~~ Check:#" "(d-2y)(3c+2x) =3dc+2xd-6yc-4yx" " # It matches so ok!

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Answer 2

Savannah Anderson

The factored form of the expression 3cd – 6cy + 2xd – 4xy is 3c(d - 2y) + 2x(d - 2y).

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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