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VIBHU SHARMA from Mount St Mary, NEW DELHI

Subject :IMO Class : Class 7

If 20x − 25 is expressed in the form a(4x + b) , then the value of a + b is __________.

A20
B10
C0
D30

Ans 1:

Parth Pandey from GD Goenka public school , Lucknow

what?