Question

Soal ada di file
Nomer 4 ( F sampai J )
Pkai cara penyelesaiannya!

Answer 1

Nomor 4

bagian f
2x² - 3x + 1 = 0
2x² - 2x - x + 1 = 0
2x(x - 1) - (x - 1) = 0
(2x - 1)(x - 1) = 0
x = 1/2 v 1

bagian g
2x² + 3x - 5 = 0
2x² - 2x + 5x - 5 = 0
2x(x - 1) + 5(x - 1) = 0
(2x + 5)(x - 1) = 0
x = - 5/2 v 1

bagian h
3x² - 7x + 4 = 0
3x² - 3x - 4x + 4 = 0
3x(x - 1) - 4(x - 1) = 0
(3x - 4)(x - 1) = 0
x = 4/3 v 1

bagian i
6x² + 7x - 5 = 0
6x² - 3x + 10x - 5 = 0
3x(2x - 1) + 5(2x - 1) = 0
(3x + 5)(2x - 1) = 0
x = - 5/3  v  1/2

bagian j
6x² - x - 12 = 0
6x² - 9x + 8x - 12 = 0
3x(2x - 3) + 4(2x - 3) = 0
(3x + 4)(2x - 3) = 0
x = - 4/3  v  3/2