Solve x^2-22x+21=0

Solve x^2-22x+21=0

To solve x^2-22x+21=0 (also written as x²-22x+21=0), we notice that it is already in the standard form ax²+bx+c=0.

Coefficients

These are the coefficients, where a=1, b=-22, and c=21.

Solving quadratic equation

We now substitute the coefficients into the quadratic equation formula and simplify.

Solution 1

This is the first solution.

Solution 2

This is the second solution.