Question

What is the standard form of a polynomial `7x(3-x+6x^3)`?

Answer 1

Multiply each term in parenthesis by `color(red)(7x)` and then arrange the resulting terms in descending exponent size:

`(color(red)(7x) xx 3) - (color(red)(7x) xx x) + (color(red)(7x) xx 6x^3) ->`

`21x - 7x^2 + 42x^4 ->`

`42x^4 - 7x^2 + 21x`