If (3x^2+18x+5=0) is solved by completing the square, which middle step is correct?
Answer and explanation
Correct answer: ((x+3)^2=\frac{22}{3})
First (x^2+6x+\frac{5}{3}=0) is obtained, then adding (9) gives ((x+3)^2=\frac{22}{3}). In exams, divide by (a) first when (a\neq1).
Frequently asked questions
What is the correct answer to this question?
((x+3)^2=\frac{22}{3})
Why is this the correct answer?
First (x^2+6x+\frac{5}{3}=0) is obtained, then adding (9) gives ((x+3)^2=\frac{22}{3}). In exams, divide by (a) first when (a\neq1).
Which subject and chapter does this question cover?
This is a Class 10 Mathematics question. Chapter: Quadratic Equations. Topic: Methods of Solving Quadratic Equations.
Student feedback
Was this question useful?
👍 0 Helpful 👎 0 Not helpful
Yes 0% No 0%
0 responsesStudent Reviews
No published reviews yet.