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## Answers

b

__+__√b²-4ac/2a

(b plus/minus square root of b² minus 4ac all over 2a)

sana makatulong :)

a, b and c are known values. a can't be 0."x" is the variable or unknown (you don't know it yet).Here are some more examples: In this one a=2, b=5 and c=3 This one is a little more tricky:Where is a? In fact a=1, as we don't usually write "1x2"b = -3And where is c? Well, c=0, so is not shown. Oops! This one is not a quadratic equation, because it is missing x2 (in other words a=0, and that means it can't be quadratic)