Answer:
x=10.29, x=-0.29
Step-by-step explanation:
Given data
x^2- 10x - 3 = 0
a=1
b=-10
c=-3
substitute into the following expression we have
x=(-b±√(b²-4ac))/(2a)
x=(-(-10)±√((-10)²-4*1*-3))/(2*1)
x=10±√100+12))/(2)
x=10±√112))/(2)
x=10±10.58/(2)
x=10+10.58/(2) , x=10-10.58/(2)
x=20.58/(2) , x=-0.58/(2)
x=20.58/2, x=-0.58/2
x=10.29, x=-0.29
