Solve the quadratic eqation y = x2 + 7x + 1 using the quadratic formula. Round your answer to the nearest hundredth.

Question

Solve the quadratic eqation y = x2 + 7x + 1 using the quadratic formula. Round your answer to the nearest hundredth.

Answer 1

x = [-b±√(b²-4ac)]/(2a)

x = [-7±√(7²-4(1)(1))]/(2(1))

x = [-7±√(49-4)]/2

x = (-7±√45)/2

x = (-7±3√5)/2

x₁ = (-7+3√5)/2 ≈ -0.15

x₂ = (-7-3√5)/2 ≈ -6.85

Hope this helped!