Question

Solve. x2 + 5x = -6

Answer 1

(X+3)(x+2)

Answer 2

Can you show your work? I'd like to learn how to do it.

Answer 3

I need more help if that's alright.
What are the solutions of 2x2 + 3x = -5?

Answer 4

sfozturk61?

Answer 5

@jaackk if you want to mention somebody, just put the "@" sign in front of their username :)

Answer 6

Thank you @Maria195 :D
@sfozturk61

Answer 7

No problem ;)

Answer 8

I don't suppose you know the answer to the second question?
What are the solutions of 2x2 + 3x = -5?

Answer 9

Maria helped me solve it both of them. :D

Answer 10

The thing is I got a complex solution :/

x = \(\ \sf \dfrac{ -3 \pm\sqrt{-31} }{4} = \dfrac{-3 \pm i\sqrt{31}}{4}\)

Though if you want to factor it: x(2x + 3) = -5

Completing the square is the same thing but let's try it,

2x^2 + 3x + 5 = 0

2(x^2 + 3/2x + ___) = -5

2(x^2 + 3/2x + 16/9) = 9/8 - 5

2(x^2 + 3/2x + 16/9) = -31/5

2(x + 3/4)^2 = -31/5

2(x + 3/4)^2 = (-31/5), you can continue but there's no point. You'll only get complex.

Answer 11

You were right @tHe_FiZiCx99

Answer 12

:)