If a + b = 10 and ab = 21, then the value of (a - b)2 is
A) 15 B) 16 C) 17 D) 18
Answers
Answered by
1
Answer:
a+b =7+3
ab=21=7*3
(a-b)2 =(7-3)2
4×2=8
Answered by
1
Answer:
8 is the correct answer
please please please mark as brainlist
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