Question

Solve the following quadratic equation (x+3)2+25=0

Answer 1

`2\cdot(x+3)+25=0` ⇒
`2x+2\cdot3=0-25`


`2x+6=-25` ⇒
`2x=-25-6` ⇒
`2x=-31`


`x= (-31)/(2)` ⇒
`\boxed {x=-15,5}`