1. Distrubute- 1st times the 1st, 1st times the 2nd, 2nd times the 1st, second times the second.
(2x-3)(x+4)
so, (2x*x)+(2x*4)+(-3*x)+(-3*4)
2. simplify the terms- remember to multiply the x and the coefficent sepperartly
(2x ²)+(8x-3x)+(-12)
3. Combine like terms
2x ² + 5x - 12
Good Luck!