Question

If a+b = 3,ab= 2 find a-b,

Answer 1

Answer:

a - b  = 1

Step-by-step explanation:

a+b = 3,ab= 2

∴ (a + b)² = a² + b² + 2ab

(3)² = a² + b² + 2×2

9 - 4 =  a² + b²

a² + b² = 5

therefore ,

(a - b)² =  a² + b² - 2ab

(a - b)² = 5 - 4

a - b = √1 = 1

Answer 2

Answer:

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Step-by-step explanation: