Question

What is the standard form of # y=9x^2(2x+x^3-3) #?

Answer 1

`y=9x^5+18x^3-27x^2`

Explanation:

Multiply everything inside the brackets by `9x^2` giving

`y=18x^3+9x^5-27x^2`

Rearranging

`y=9x^5+18x^3-27x^2`

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Standard form `->a_nx^n+a_(n-1)x^(n-1)+a_(n-2)x^(n-2)+....a_1x^1+a_0x^0`