Write all radicals in simplified form, and all answers in lowest terms.
1.x² + 9x = 4x  3
2. 2k²  5k + 4 = 0
1.x² + 9x = 4x  3
2. 2k²  5k + 4 = 0

1).
x² + 9x = 4x  3
x^2 + 5x + 3 = 0
Solutions:
x = 1/2(5  √13)
x = 1/2(√13  5)
2).
2k²  5k + 4 = 0
Complex solutions:
k = 1/4(5  i√7)
k = 1/4(5 + i√7
x² + 9x = 4x  3
x^2 + 5x + 3 = 0
Solutions:
x = 1/2(5  √13)
x = 1/2(√13  5)
2).
2k²  5k + 4 = 0
Complex solutions:
k = 1/4(5  i√7)
k = 1/4(5 + i√7