3 years ago

Solve for x 3x^2-21x+3=0

1 answer:

4 0

3x2−21x+3=0

Step 1: Use quadratic formula with a=3, b=-21, c=3.

x=−b±√b2−4ac2a

x=−(−21)±√(−21)2−4(3)(3)2(3)

x=21±√4056

x=72+32√5 or x=72+−32√5

answer

x=72+32√5 or x=72+−32√5

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