1.
For what values of j does the equation (2x+7)(x-5) = -43 + jx have exactly one real solution? If you find more than one, then list the values separated by commas.
2.
Find all real numbers z for which the equation (z-5)x^2-zx+5=0 only has one real solution. If you find more than one, then list the values separated by commas.
