10. A quadratic equation is shown:

[tex]\[ x^2 - 8x + 13 = 0 \][/tex]

Which of the following is the first correct step to write the above equation in the form [tex]\((x - p)^2 = q\)[/tex], where [tex]\( p \)[/tex] and [tex]\( q \)[/tex] are integers?

A. [tex]\( x^2 - 8x + 13 - 5 = 0 - 5 \)[/tex]
B. [tex]\( x^2 - 8x + 13 - 3 = 0 - 3 \)[/tex]
C. [tex]\( x^2 - 8x + 13 + 5 = 0 + 5 \)[/tex]
D. [tex]\( x^2 - 8x + 13 + 3 = 0 + 3 \)[/tex]



Answer :

To convert the quadratic equation [tex]\(x^2 - 8x + 13 = 0\)[/tex] into the form [tex]\((x - p)^2 = q\)[/tex], where [tex]\(p\)[/tex] and [tex]\(q\)[/tex] are integers, we need to complete the square.

Let's go through the steps:

1. Move the constant term to the right-hand side:
[tex]\[ x^2 - 8x + 13 = 0 \][/tex]

The constant term in the equation is [tex]\(+13\)[/tex]. To isolate the terms involving [tex]\(x\)[/tex], we need to subtract 13 from both sides of the equation:
[tex]\[ x^2 - 8x + 13 - 13 = 0 - 13 \][/tex]

Simplifying both sides, we get:
[tex]\[ x^2 - 8x = -13 \][/tex]

Thus, the first correct step to write the given quadratic equation in the form [tex]\((x - p)^2 = q\)[/tex] is:
[tex]\[ x^2 - 8x + 13 - 13 = 0 - 13 \][/tex]

This corresponds with the answer choice [tex]\(x^2 - 8x + 13 - 13 = 0 - 13\)[/tex].