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Question 1
Solve: 3x + 7 = 2x − 5. (CDS PYQ)
Ax = −12
Bx = −2
Cx = 2
Dx = 12
Question 2
The solution of 2x + 3y = 12 and 3x − y = 1 is: (CDS PYQ)
Ax=1, y=3
Bx=3, y=2
Cx=15/11, y=34/11
Dx=2, y=2
Question 3
The discriminant of 2x² − 5x + 3 = 0 is: (CDS PYQ)