Question

Solve the equation x^2- 10x - 3 = 0 to the nearest tenth

Answer 1

x=10.29, x=-0.29

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