What is the standard form of #y=2x(3-x)(6-x)#?

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Answer 1 · 2016-01-31T14:02:17

#y=2x(3-x)(6-x)#

First solve #(3-x)(6-x)# using foil method:

Foil method:

So,
#(3-x)(6-x)=18-3x-6+x^2=(18-9x+x^2)=(x^2-9x+18)# In standard notation.

#rarry=2x(x^2-9x+18)#

Use distributive property to multiply:

#rarry=2x^3-18x^2+36x#