Solve using the Quadratic Formula

Question

Solve f(x)=6x^2-49=8 using the quadratic formula. Give exact answer.

Answer 1

Being told to use the quadratic formula is silly because this quadratic has no x term(degree one) and so it would normally be solved as follows:

6x² = 57

x=±√(57/6) or ±√342 / 6 or ±∼38 / 2.

 

If you are a slave to dictated instructions, then you must first write this quadratic as

6x²  + 0x -57 = 0 and now you can use the quadratic equation with a=6, b=0, c=-57

and of course you will get the same result as above.