Q: What number must you add to complete the square x2 10x31?

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-7

You need to add -22.

Put in the - or + values for 4x and 7 is the first step in finding the number needed

9

No it is not. If you want to get a square number you must multiply a number by its self.

Related questions

You must add 36 to complete the square on the left hand side.You must add 36 to complete the square on the left hand side.You must add 36 to complete the square on the left hand side.You must add 36 to complete the square on the left hand side.

144

-3

You must add 1

You must add (17n + 144).

Adding 100 completes the square. { I wonder why you want to complete the square when the expression already factors as x(x-20) }.

4

it is 121

49/4 or 12.25

-7

94

You need to add -22.