solve the following quadratic equations by completing the square method. x square +2x-5=0
Answers
Answered by
1
the answer the following questions is -1+√6, -1-√6
Attachments:
Answered by
3
Hi ,
x² + 2x - 5 = 0
x² + 2x = 5
x² + 2 × x × 1 + 1 = 5 + 1
( x + 1 )² = 6
( x + 1 ) = ± √6
x = - 1 ± √6
Therefore ,
- 1 + √6 , or - 1 - √6 are roots of
given quadratic equation.
I hope this helps you.
: )
x² + 2x - 5 = 0
x² + 2x = 5
x² + 2 × x × 1 + 1 = 5 + 1
( x + 1 )² = 6
( x + 1 ) = ± √6
x = - 1 ± √6
Therefore ,
- 1 + √6 , or - 1 - √6 are roots of
given quadratic equation.
I hope this helps you.
: )
Similar questions