Respuesta :

apologiabiology
complete the square since can't factor
2/2=1
add 1 to both sides
x²+2x+1-6=1
factor perfect square
(x+1)²-6=1
add 6 to both sides
(x+1)²=7
sqrt both sides
x+1=+/-√7
minus 1 both sides
x=-1+/-√7


so x=-1+√7 or x=-1-√7
TheCoolMan015

Answer:

Quadratic formula, completing the square or graphing; the coefficient of x2 term is 1, but the equation cannot be factored.

Step-by-step explanation:

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