Solve quadratic equation by factoring or using quadratic formula with our free quadratic equation calculator. ... Step 2 : Choose a command relating to the function f(x) you entered above. ... Example 5 Solve x2 + 6x - 7 = 0 by completing the square. ... Now we find half of 6 = 3 and 32 = 9, to give us the number for the blank.
Step-by-step explanation: