If x=3 is the solution of x2+kx+15, the value of k is:
Answers
Answered by
5
✴If x = 3 then 3² + 3k + 15 =0
✴ 9 + 3k + 15 = 0
✴ 9 + 3k = -15
✴ 3k = -24
✴ k = -24/3
➡️ k = -8
Similar questions
English,
1 month ago
India Languages,
1 month ago
Math,
2 months ago
Political Science,
2 months ago
Math,
9 months ago