Question

If x = 1+ 51/3 +52/3, then find the value of x2-3x2 -
12x + 6.
​

Answer 1

cubing on both sides we get

Answer 2

X = 3 + 51 +52 / 3 = 106 / 3

Thus,

X 2 - 3x2 - 12x + 6

=106/3 ^2 - 3 * 106 /3 ^2 + 12 * 106/3 + 6

= 1246.09 - 3744.98 +424 + 6

= 1676.09 - 3744.98

= - 2068.89 ans

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