Question

Write (x+1)(x-3)² in the form ax³+bx²+cx+d​

Answer 1

x³ - 5x² + 3x + 9

Explanation:

▪ (x+1)(x-3)²

open the squared bracket

⇒(x + 1) [x² - 2x(3) + (3)² ]

⇒(x + 1) (x² - 6x + 9)

multiply both brackets

⇒x³ - 6x² + 9x + x² - 6x + 9

rearrange

⇒x³ - 6x² + x² + 9x - 6x + 9

⇒x³ - 5x² + 3x + 9

⇒x³ - 5x² + 3x + 9 answer.

hope that helps...

Answer 2

hope this helped! method is given.