Question

Which are the solutions of x2 = –13x – 4?
dont gime bs just answer it
85 points btw

Answer 1

-0.3 and - 12.7

Explanation:

Rewrite in quadratic form:

x2 + 13x + 4 = 0

The best approximations, given the options, are 0 and - 13

The actual solution is -

Answer 2

Explanation:

Step 1: Add 13x to both sides

`x^2 + 13x = -13x + 13x - 4`

`x^2 + 13x = -4`

Step 2: Add 4 to both sides

`x^2 + 13x + 4 = -4 + 4`

`x^2 + 13x + 4`

Step 3: Use Quadratic Formula

`x = ( -b \pm √( b^2 - 4ac ) )/(2a)`

`x = \frac{ -(13) \pm √( 13^2 - 4(1)(4)) } { 2(1)}`

`x = (-13 \pm √(153))/(2)`

`x = (-13\pm3√(17) )/(2)`

Answer:
`x = (-13\pm3√(17) )/(2)`