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ad-work [718]
3 years ago
8

Expand and simplify: 3x(2x-3)^2 - (x+4)

Mathematics
1 answer:
Crazy boy [7]3 years ago
7 0
3x(2x-3)^2 - (x+4)=\\
3x(4x^2-12x+9)-x-4=\\
12x^3-36x^2+27x-x-4=\\
12x^3-36x^2+26x-4
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Let's assume two variables x and y which represent the local and international calls respectively. 

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