Evaluate
3x\left(x-2\right)\left(x+3\right)
Expand
3x^{3}+3x^{2}-18x
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\left(3x^{2}+9x\right)\left(x-2\right)
Use the distributive property to multiply 3x by x+3.
3x^{3}-6x^{2}+9x^{2}-18x
Apply the distributive property by multiplying each term of 3x^{2}+9x by each term of x-2.
3x^{3}+3x^{2}-18x
Combine -6x^{2} and 9x^{2} to get 3x^{2}.
\left(3x^{2}+9x\right)\left(x-2\right)
Use the distributive property to multiply 3x by x+3.
3x^{3}-6x^{2}+9x^{2}-18x
Apply the distributive property by multiplying each term of 3x^{2}+9x by each term of x-2.
3x^{3}+3x^{2}-18x
Combine -6x^{2} and 9x^{2} to get 3x^{2}.
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