0
assuming you meant to say: x2+10x+31
you can use this formula: (a+(0.5 b))2 - (0.5 b) + c
in this equation: (x+5)2-25+31
= (x+5)2+16
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
What number must be added to the polynomial to complete the square x2-9x?
-7
What number must you add to complete the square x2 plus 2x 23?
You need to add -22.
What number must you add to complete the square x2 4x 7?
Put in the - or + values for 4x and 7 is the first step in finding the number needed
What number must be added to complete the square of x SQUARED plus 12x equals -3?
9
Is 120 a square number?
No it is not. If you want to get a square number you must multiply a number by its self.
What number must you add to complete the square x2 plus 12x equals 40?
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.
What number must be added to the polynomial to complete the perfect square x2-24x?
144
What number must be added to the polynomial to complete the square x2-5x?
-3
What number must you add to complete the square x2 plus 2x equals -1?
You must add 1
What number must you add to complete the square x2 plus 24x equals 17n?
You must add (17n + 144).
What number must be added to the polynomial to complete the square x2 - 20x?
Adding 100 completes the square. { I wonder why you want to complete the square when the expression already factors as x(x-20) }.
What number must you add to complete the square x2 minus 4x equals 1?
4
What number must you add to complete the square x2 plus 22x equals 0?
it is 121
What number must be added to the polynomial to complete the square x2 7x?
49/4 or 12.25
What number must be added to the polynomial to complete the square x2-9x?
-7
What number must you add to complete the square of x to the power of 2 plus18x subtracted by13?
94
What number must you add to complete the square x2 plus 2x 23?
You need to add -22.
