Solve x2 + 4x + 1 = 0. x equals the quantity of 4 plus or minus square root 12 all over 2
x equals negative 4 plus or minus square root 3
x equals negative 2 plus or minus square root 3
x equals the quantity of 4 plus or minus square root 13 all over 2

Girardo is using the model below to solve the equation . girardo uses the following steps: step 1 add 4 negative x-tiles to both sides step 2 add 1 negative unit tile to both sides step 3 the solution is which step could be adjusted so that gerardo's final step results in a positive x-value? in step 1, he should have added 4 positive x-tiles to both sides. in step 1, he should have added 3 negative x-tiles to both sides. in step 2, he should have added 4 negative unit tiles to both sides. in step 2, he should have added 1 positive unit tile to both sides.