Question 763873
Differentiate each term, and add the terms.<P>
To differentiate {{{nx^y}}} it's {{{ynx^(y-1)}}}<P>
Multiply the coefficient by the power to get the new coefficient.  Subtract 1 from the power to get the new power.<P>
y = x^4 + 5x^3 - 4x^2 + 7x - 2 becomes <P>
{{{(4*1)x^(4-1) + (3*5)x^(3-1) - (2*4)x^(2-1) + 7x^(1-1) - (2*0)x^(0-1)}}}=<P>
{{{4x^3 + 15x^2 - 8x + 7}}}<P>
Remember {{{x^0 = 1}}}