Question

(D f(x) = x(x + 1) (2x + 1) then f(x) - f(x - 1) is -




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Answer 1

Step-by-step explanation:

d f(x)=x(x+1)=x+x=2x

now,2x+1=3x

then f(x)-f(x-1)=(minus plus =minus)

then ,3x+(-2)=1x

then, 2x+3x+1x=6xcube

now the cube of 6=216x

the answer of this question is 216x