Question: 3. Find all k such that x2 - kx + 3 -0 has only one solution. 4. If r and s are solutions of ax

3. Find all k such that x2 - kx + 3 -0 has only one solution. 4. If r and s are solutions of ax + bx + c = 0, b show that r + s = -- and rs = - a a 5. x = 1/ 20 + V 20 + V20+... = ? 6. Find x, x1/3 4 x-1/3 + 2 = 0. 7. For what values of a > 0 does ax(1 - x) = 1 have no real solutions? 8. Find all x so that x - 5\\x + 6 = 0

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