Please hurry! a^2+b^2=10 and ab=2. Find (a-b)^2

Question

asked Oct 14, 2022 221k views

1 Answer

Peter Loudon · Answer 1 · 2022-10-19T23:30:58+0000

Answer:

(a - b)² = 6

Explanation:

The expansion of (a - b)² using FOIL is

(a - b)² = a² + b² - 2ab ← substitute given values

= 10 - 2(2)

= 10 - 4

= 6