Question

Show the solution and answer

(3x + 5)(x - 9)

Answer 1

3x^2 -27x +5x -45

Answer : 3x^2 -22x -45
You basically cross multiply each term by the opposing one, so 3x times x would be 3x^2 , 3x times 9 would be -27x, 5 times x would be 5x, and 5 times -9 would be -45 :)