x^2+5= -6x find the roots of the quadratic equation by applying the quadratic formula.
Answers
Answered by
11
__________________________
x² + 5 = -6x
= = > x² + 5 + 6x = 0
= = > x² + 6x + 5 = 0
= = > x² + 5x + x + 5 = 0
= = > x ( x + 5 ) + 1 ( x + 5 )
= = > x + 1 = 0
= = > x = - 1
= = > x + 5 = 0
= = > x = - 5
Answered by
3
__________________________
x² + 6x + 5 = 0
= = > x² + 5x + x + 5 = 0
= = > x ( x + 5 ) + 1 ( x + 5 )
= = > ( x + 1 ) ( x + 5 )
__________________________
• x + 1 = 0
= = > x = -1
• x + 5 = 0
= = > x = -5
__________________________
Similar questions