РЕШИТЕ ПОДРОБНО ..............

Question

РЕШИТЕ ПОДРОБНО ..............

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Answer 1

(1-2(1.5-х))/(1-4(х-2))=х
(1-3+2х)/(1-4х+8)=х
(-2+2х)/(9-4х)=х
-2+2х=х(9-4х)
-2+2х=9х-4х²
-2+2х-9х+4х²=0
4х²-7х-2=0
D=49-4*4*(-2)=81
x1=(7+9)/8=2
x2=(7-9)/8=-1/4