Question 1196712
Please l need your help for this assignment.if a and b are the root of the quadratic equation 3x³-4x-7=0, find a²/B +B²/a
<pre>       {{{matrix(2,3, x^2 - 4x - 7, "=", 0, 3x^2 - 7x + 3x - 7, "=", 0)}}}       
x(3x - 7) + 1(3x - 7) = 0
 x + 1 = 0     and      3x - 7 = 0, and so, roots, or {{{system(matrix(1,5, x[R1], "=", - 1, "=", a), and, matrix(1,5, x[R2], "=", 7/3, "=", b))}}}

                                                   {{{matrix(1,12, highlight(a^2/b + b^2/a), "=", (- 1)^2/(7/3) + (7/3)^2/(- 1), "=", 3/7 - 49/9, "=", (27 - 343)/63, "=", - 316/63, ",", or, highlight(- 5&1/63))}}}

Switching the variables {{{matrix(1,7, "(a", "=", 7/3, ",", b, "=", "- 1)")}}} yields the same result.</pre>