Question

HELP ASAP 50 POINTS

What are the exact solutions of x2 + 5x + 1 = 0 using x equals negative b plus or minus the square root of the quantity b squared minus 4 times a times c all over 2 times a?

x = the quantity of 5 plus or minus the square root of 21 all over 2
x = the quantity of negative 5 plus or minus the square root of 21 all over 2
x = the quantity of 5 plus or minus the square root of 29 all over 2
x = the quantity of negative 5 plus or minus the square root of 29 all over 2

Answer 1

• B. x = the quantity of negative 5 plus or minus the square root of 21 all over 2

Explanation:

• x² + 5x + 1 = 0
• x = (-b ±
  `√(b^2 - 4ac)`)/ (2a)
• x = (- 5 ±
  `√(5^2 - 4*1*1)`) / (2*1)
• x = (- 5 ±
  `√(21)`) /2

Correct choice is B