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23 votes
23 votes
if using the method of completing the square to solve the quadratic equation x^2+17x+3=0x 2 +17x+3=0, which number would have to be added to "complete the square"?​

User RobertoT
by
3.1k points

2 Answers

21 votes
21 votes

Answer:

i think it might be 72.5

also theres an app called air math it could possibly help with questions you have

Explanation:

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User The Hog
by
3.2k points
9 votes
9 votes

Answer:

Explanation:

answer:289/4

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

User David Barlow
by
2.6k points