miewnin99 miewnin99

09-02-2021
Mathematics

contestada

what number must you add to complete the square?

x^2+14x=3

Respuesta :

TheBlueFox TheBlueFox

09-02-2021

Answer: 49

Step-by-step explanation: In order to complete the square, you need a perfect square trinomial on the left side of the equation.

The question is, what is the number we need?

Well it comes from a formula. The number that is added to both sides

comes from half the coefficient of the middle term squared.

So that's half of 14 which is 7, squared which is 49.

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