Question

find the roots of x² +5x +4=0 using quadratic formula​

Answer 1

Step-by-step explanation:

x²+5x+4=0

a=1, b=5, c=4

x=-b±root of (b²-4ac) whole divided by 2a

x=-5±root of (5²-4(1)(4)) whole divided by 2(1)

x=-5±root of (25-16) whole divided by 2

x=(-5±√9)/2

x=(-5±3)/2

x=(-5+3)/2 and x=(-5-3)/2

x=-2/2 and x=-8/2

x=-1 and x=-4