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

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Answer 1 · 2016-01-23T15:30:59

#y=4x^3-4x^2-15x+18#

first expands the power root first

#(2x-3)^2#

#(2x-3)(2x-3)#

#4x^2-6x-6x+9#

#4x^2-12x+9#

then , times with #(x+2)#

#y=(4x^2-12x+9)# #(x+2)#

u will get

#y=4x^3-12x^2+9x+8x^2-24x+18#

#y=4x^3-4x^2-15x+18#