Which of the following is a solution of x^2+5x=-2?

5 plus or minus the square root of 33 divided by two.

5 plus or minus the square root of 17 divided by two

negative 5 plus or minus the square root of 33 divided by two

negative 5 plus or minus the square root of 17 divided by two

Question

Which of the following is a solution of x^2+5x=-2?

5 plus or minus the square root of 33 divided by two.

5 plus or minus the square root of 17 divided by two

negative 5 plus or minus the square root of 33 divided by two

negative 5 plus or minus the square root of 17 divided by two

anonymous · Answer

you have to use the quadratic equation. do you know how?

brynndelyn · Answer

Sorta

campbell_st · Answer

well rewrite the equation as 

x^2 + 5x + 2 = 0

you need the general quadratic formula

a = 1, b = 5 and c = 1

the formula is 

$$x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}$$

hope it helps

campbell_st · Answer

oops c = 2...

isaiah.feynman · Answer

Or you can complete the square.