If a + b = 10 and ab = 21, then the value of (a – b) 2 is? – OfficerPath

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If a + b = 10 and ab = 21, then the value of (a - b) 2 is?

Subject: MathematicsTopic: Algebra

A

15

B

16

C

17

D

18

Correct Answer: B

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