Tentukan Himpunan a. x²+12=7x b. 3x²+5x = 2 c. 2x-3>5 d. 5-3x<2 e. x²+3x>4 f. 2x²-11x+5<0

a. x² + 12 - 7x = 7x - 7x
x² - 7x + 12 = 0
(x - 3)(x - 4)
x = 3 , x = 4

b. 3x² + 5x - 2 = 0
(3x - 1)(x + 2)
x = 1/3 , x = -2

c. 2x - 3 + 3 > 5 + 3
2x > 8
x > 8/2
x > 4

d. 5 - 3x < 2
5 - 5 - 3x < 2 - 5
- 3x < -3
x > 1

e. x² + 3x - 4 > 4 - 4
x² + 3x - 4 > 0
(x - 1)(x + 4)
x = 1 , x = -4

f. 2x² - 11x + 5 < 0
(2x - 1)(x - 5)
x = 1/2 , x = 5