What should be added to x2 + 2x + 0.5 to make it a perfect square?
0.1
0.5
0.6
0.4
Only when 0.5 is added to the given equation it will become a perfect square.
What number should be added to x2+6x to make it a perfect square?
What should be subtracted to x2 + 2x + 2 to make it a perfect square?