Bao Yu is completing the square to solve the polynomial equation. x^2-x-3=0 what should be her first step?

A. adding –x to both sides of the equation

B. adding –3 to both sides of the equation

C. isolating the first term, x2

D. isolating the constant, –3

Respuesta :

Answer:

D) isolating the constant, –3

Step-by-step explanation:

D) isolating the constant, –3

Frist step for completing the square to solve the polynomial equation [tex]x^{2} -x-3=0[/tex] is isolating the constant , [tex]-3[/tex].

What is equation?

" Equation is defined as the relation between variables as per given condition using the sign of equality."

According to the question,

Given polynomial equation,

[tex]x^{2} -x-3=0[/tex]

First step for the completing the square of the given equation,

Isolating the constant [tex]-3[/tex] of the equation we get,

[tex](x^{2} -x)-3=0\\\\\implies (x^{2} -x + \frac{1}{4} )- \frac{1}{4}-3=0\\\\\implies (x- \frac{1}{2})^{2} - \frac{13}{4} =0[/tex]

Hence, Option (D) is the correct answer.

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brainly.com/question/10413253

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