Let x2+11x=3 .

What values make an equivalent number sentence after completing the square?

Enter your answers in the boxes.

x2+11x+

=

Question

Mathematics

Marcelo Miranda

25 March, 07:31

Let x2+11x=3 .

What values make an equivalent number sentence after completing the square?

Enter your answers in the boxes.

x2+11x+

=

+3

Answers (2)

Know the Answer?

Dania Waters · Answer 1

x^2 + 11x + 121/4 = 133/4

Step-by-step explanation:

x^2 + 11x = 3

We need to complete the square

Take 11

Divide it by 2

11/2

Then square it

(11/2) ^2 = 121/4

Add it to each side

x^2 + 11x + 121/4 = 3+121/4

x^2 + 11x + 121/4 = 12/4+121/4

x^2 + 11x + 121/4 = 133/4

Landon Rosario · Answer 2

121/4; 133/4

Step-by-step explanation:

x² + 2 (x) (11/2) + (11/2) ² - (11/2) ² = 3

x² + 2 (x) (11/2) + (11/2) ² = 3 + 121/4

x² + 11x + 121/4 = 133/4

Let x2+11x=3 .What values make an equivalent number sentence after completing the square?Enter your answers in the boxes.x2+11x+=

Let x2+11x=3 .

What values make an equivalent number sentence after completing the square?

Enter your answers in the boxes.

x2+11x+

=