Question

Solve. x2 + 4x + 1 = 0

Answer 1

For this question, you need to think about what two numbers MULTIPLY to give 1 and ADD to give 4.

Alternatively, just use the quadratic formula:
\[x=(-b \pm \sqrt{b^2-4ac})/2a\]

Where a, b and c are your coefficients. In this case, a=1, b=4, c=1.