How do you multiply (x^2 + 3x)(x + 1)?
2 Answers
Jun 9, 2018
Explanation:
multiplying out:
Jun 9, 2018
Explanation:
"each term in the second factor is multiplied by each term"
"in the first factor"
(color(red)(x^2+3x))(x+1)
=color(red)(x^2)(x+1)color(red)(+3x)(x+1)larrcolor(blue)"distribute"
=(color(red)(x^2)xx x)+(color(red)(x^2)xx1)+(color(red)(3x)xx x)+(color(red)(3x)xx1)
=x^3color(blue)(+x^2)color(blue)(+3x^2)+3xlarrcolor(magenta)"collect like terms"
=x^3+4x^2+3x