(i) If a + b = 7 and ab = 10, find the value of (a - b).
can I please know the answer for this?
ManishUjariya:
a-b =3
Answers
Answered by
1
Answer:
3 or -3
Step-by-step explanation:
(a-b)^2 = (a+b)^2 - 4ab =49 - 40 = 9
(a - b) = 3 or -3
good job
(A+b)^2=a^2+b^2+2ab
Answered by
2
usually reject the negative one so your answer is 3 .
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good job....
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bro ..I can't share this question ..so how I m?
dude thank you but we are told to use the formula
Which formula
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