If using the method of completing the square to solve the quadratic equation x^2+17x+12=0x 2 +17x+12=0, which number would have

Question

Alina [70]

3 years ago

5

If using the method of completing the square to solve the quadratic equation x^2+17x+12=0x 2 +17x+12=0, which number would have

to be added to "complete the square"?

Mathematics

2 answers:

Ronch [10] · Answer 1 · 2022-07-09T10:59:37+03:00

Ronch [10]3 years ago

7 0

Answer:

(x+7/2)=1/4

Step-by-step explanation:

I got it on Khan Academy, trust me. It's right. I got it wrong because of the other answer here, so your welcome, but this is the correct answer, Khan Academy people.

umka2103 [35] · Answer 2 · 2022-07-09T09:14:16+03:00

umka2103 [35]3 years ago

6 0

Answer:

289/4

Step-by-step explanation:

x² + 17x + 12 = 0

x² + 17x = -12

Take half of the second coefficient, square it, then add the result to both sides.

(17/2)² = 289/4

x² + 17x + 289/4 = -12 + 289/4

(x + 17/2)² = 241/4