147k views
5 votes
Expand the polynomial: (−a+b)(b–a)

User Nactus
by
5.7k points

2 Answers

3 votes

Answer:

a² - 2ab + b²

Explanation:

(-a+b)(b-a)

(b-a)(b-a)

(b-a)²

b² - 2ab + a²

Or

a² - 2ab + b²

User Alexander Lutsenko
by
6.5k points
4 votes

Answer:

a^2 - 2ab + b^2

Explanation:

Step 1: Foil

(-a + b)(b - a)

(-a * b) + (-a * -a) + (b * b) + (b * -a)

-ab + a^2 + b^2 - ab

a^2 - 2ab + b^2

Answer: a^2 - 2ab + b^2

User Trevorhinesley
by
6.4k points
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