Solve 2(x^2) - 7x - 7 = 0, leaving the answer in surd (square root) form.
Using the quadratic formula, a = 2, b = -7 and c = -7. The quadratic formula is x = ( (−b) ± suq(b^2−4ac)) / 2a )
Substitution gives:
x = ( 7± suq ((−7)^2 − 4(2)(−7) ) / 2×2 ) = (7 ± suq(105) ) / 4
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