paigeshepherd27
contestada

Help please within the next hour
Amira is solving the equation x2 – 6x = 1. Which value must be added to both sides of the equation to make the left side a perfect-square trinomial?
a. –9
b. 8
c. 9
d. 36

Respuesta :

al3x45

c. 9

To complete the square, you take half of the coefficient of b and square it. It's important to note that the value being added will always be positive.

[tex] {ax}^{2} + bx + c[/tex]

[tex]b = - 6[/tex]

[tex] - 6 \div 2 = - 3[/tex]

[tex] = {( - 3)}^{2} [/tex]

[tex] = 9[/tex]