jmc

Question

Find the coefficient of x^2 when 4(x - x^3) - 3(x^2 - x^3 + x^5) + 2(4x^2 - x^9) is simplified.

Accepted Answer

The coefficient of x^2 in 4(x - x^3) - 3(x^2 - x^3 + x^5) + 2(4x^2 - x^9) is -3 + 2 4 = 5.