Solve for x in the equation x squared + 2 x + 1 = 17.
x = negative 1 plus-or-minus startroot 15 endroot
x = negative 1 plus-or-minus startroot 17 endroot
x = negative 2 plus-or-minus 2 startroot 5 endroot
x = negative 1 plus-or-minus startroot 13 endroot

x = negative 1 plus-or-minus StartRoot 17 EndRoot

Step-by-step explanation:

Given:

We need to solve for x.

First we will solve L.H.S

Factorizing the equation we get;

Now Things which are equal to the same thing are also equal to one another. Since

then, according to the law of transitivity,

Now, applying the Square Root Principle we get:

Now Square root and square gets cancelled.

Since a square root has two values, one positive and the other negative.

Hence  Final Answer is .

the forst and 3rd

step-by-step explanation:

can you post the graph?