Question

9. Expand (x+2)(x-1)(x-3)​

Answer 1

x(x-1)(x-3) + 2 (x-1)(x-3)

= X^3 - 4x^2 + 3x + 2x^2 - 8x + 6

= x^3 - 2x^2 - 5x + 6

Answer 2

( x + 2 ) ( x - 1 ) ( x - 3 )

( x² - x + 2x - 2 ) ( x - 3 )

( x² + x - 2 ) ( x - 3 )

x³ - 3x² + x² - 3x - 2x + 6

x³ - 2x² - 3x - 2x + 6

x³ - 2x² - 5x + 6