What Number must you add to complete the square?

x2+2x=23

Question

Mathematics

Armani

4 May, 15:27

What Number must you add to complete the square?

x2+2x=23

+2

Answers (2)

Know the Answer?

Andrew Cannon · Answer 1

X = {3.898979486, - 5.898979486}

x = {3.9 x - 5.9}

Jaslyn Arias · Answer 2

You must add the square of half of the linear coefficient. The "b" term in ax^2+bx, in this case 2.

So you must add (2/2) ^2=1 to both sides of the equation ...

What Number must you add to complete the square?x2+2x=23

What Number must you add to complete the square?

x2+2x=23