Question

Tolong bantu jawab beserta caranya, dikumpulkan besokkk!!!

Answer 1

#F

a. 3(4) - 2( x) = 0 → 12- 2x = 0 → x = -12/-2

x = 6

b. (1-2x)2 -3x(-2) = 1 - 5x

2 - 4x + 6x = 1 - 5x

-4x + 6x + 5x = 1 - 2

7x = 1

x = 1/7

c. 2x² (-4) - 3(-5) = 2x

-8x² + 15 = 2x

8x² + 2x - 15= 0

(4x - 5)(2x + 3)= 0

x = 5/4 atau x = - 3/2

d. x²(-1) + x(0) +2(0)= - x - 6

-x² = - x - 6

x² - x - 6= 0

(x - 3)(x + 2) = 0

x = 3 atau x = - 2