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How do you factor #20s ^ { 2} - 27s d + 9d ^ { 2}#?

1 Answer

Jun 24, 2017

#=(5s-3d)(4s-3d)#

Explanation:

#20s^2-27sd+9d^2#

#=20s^2-12sd-15sd+9d^2#

#=4s(5s-3d)-3d(5s-3d)#

#=(5s-3d)(4s-3d)#

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