Question

find roots of xsquare +5x-1 by equation​

Answer 1

Answer:

x²+5x -1 =0

D= 5²- 4×1×-1 = 25+ 4= 29

alpha = - 5 + 29/2×1 = 24/2=12

beta = -12

Roots of the equation are = 12, -12

Hope this helps....

Answer 2

x² + 5x -1 = 0

D = b² - 4ac

D = 5² - 4 × 1 × (-1)

D = 25 + 4

D = 29

x = -b + √D/2a

x = -5 + √29/2

or

x = -b - √D/2a

x = -5 - √29/2

Therefore,

roots of equation = x = (-5+√29/2),(-5-√29/2)