3 years ago

Complete the square x2 – 6x + 8.

Mathematics

2 answers:

scoray [572]3 years ago

8 0

$x^2-6x + 8=x^2-6x+9-1=(x-3)^2-1$

drek231 [11]3 years ago

6 0

Answer:

(x - 3)^2 - 1.

Step-by-step explanation:

x2 – 6x + 8.

We divide the coefficient of x by 2:

-6 / 2 = -3 so the contents of the parentheses is x - 3:

x^2 - 6x + 8

= (x - 3)^2 - (-3)^2 + 8

= (x - 3)^2 - 1.

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The area of the rectangle can be calculated with the formula:

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Being l the lenght of the rectangle and w the width of the rectangle.

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