Question

What is the solution to the following equation?

x2 + 5x + 7 = 0
O A. x = 5:3
O B. x= 33.475
O c. x==37x7
O D. x = -52753

Answer 1

None of the answers given.

Explanation:

`x^2 + 5x + 7 = 0`

`$x=(-5\pm √(5^2-4\cdot \:1\cdot \:7))/(2\cdot \:1)$`

`$x=(-5\pm √(25-28))/(2)$`

`$x=(-5\pm i√(3))/(2)$`

`$x_(1)=-(5)/(2)+(√(3))/(2)i$`

`$x_(2)=-(5)/(2)-(√(3))/(2)i$`