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WCS
WCS Set-1
Algebra
28
Algebra MCQ with Answers
28)
What is the value of x
2
-y
2
if (x+y) = 9, (x - y) = 4?
13
65
36
46
Answer is:
36
Algebra MCQ with Answers
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Related Algebra MCQ with Answers
29)
What is the value of 'X' if x - y = 6 and x + y = 8?
5
6
7
14
Answer
Answer is:
7
30)
What is the value of a
2
+b
2
if a+b=9 and ab = 20?
121
(-121)
41
(-41)
Answer
Answer is:
41
31)
What is the value of ab if (a+b)
2
=36 (a-b)
2
=24?
6
4
3
2
Answer
Answer is:
3
32)
What is the value of x
3
+3y
2
x
2
if x=3, y=2?
135
81
54
63
Answer
Answer is:
135
Algebra MCQ with Answers
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