Subtract; 3/x - (2x+5)/(x+3)

Question

College Algebra

Answer 1

The LCD is x(x+3). Get both fractions over the LCD.

3(x+3)/x(x+3) = (3x+9)/x(x+3)

(2x+5)x/(x+3)x = (2x²+5x)/x(x+3)   Now subtract

(-2x² - 2x + 9)/(x² + 3x)