Express 4x/(x^2-9)-2/(x+3) as a single fraction in its simplest form

4x/(x2-9)-2/(x+3) = 4x/((x+3)(x-3))-2/(x+3) = 4x/((x+3)(x-3))-2(x-3)/((x+3)(x-3)) = (4x-2(x-3))/((x+3)(x-3)) = (2x+6)/((x+3)(x-3) = (2(x+3))/((x+3)(x-3)) = 2/(x-3)

CS

Related Maths A Level answers

All answers ▸

Find the integral between 4 and 1 of x^(3/2)-1 with respect to x


What is the indefinite integral ∫5exp(3-4x)dx ?


If y = 1/(x^2) + 4x, find dy/dx


Given the function y = x^5 + x^3/2 + x + 7 Express the following in their simplest forms: i) dy/dx ii) ∫ y dx