7-x^3 + 2x - 4x^3? in standard form
To put the expression 7-x^3 + 2x - 4x^3 in standard form, we need to combine like terms and arrange them in descending order of powers of x.
The given expression can be rewritten as (-x^3 - 4x^3) + (2x + 7):
= -5x^3 + 2x + 7
Thus, the expression in standard form is -5x^3 + 2x + 7.