Question

Tolong dong bantu sekarang :)

Answer 1

A.
8 - 2x = 10 - x
-x = 2
x = -2

b.
3x² = x + 2
3x² - x - 2 =0
(3x + 2)(x - 1)= 0
x = -⅔ V x = 1

c.
3 = -2x²-5x
2x²+5x+3= 0
(2x+3)(x+1)=0
x= -3/2 V x= -1

d.
x²+3x-4=0
(x+4)(x-1)=0
x= -4 V x= 1