2 câu trả lời
Đáp án:
( x^2-1/2x):2x-(3x-1):(3x-1)=0
<=> x ²-1/2x-1=0
<=>(x-1/4) ²=17/16
<=> x= ( √17+1)/4
x= (- √17 +1)/4
(x2-12x):2x-(3x-1):(3x-1)=0
⇔x²
<=>(x-1/4) ²=17/16
<=> x= ( √17+1)/4
x= (- √17 +1)/4
Đáp án:
( x^2-1/2x):2x-(3x-1):(3x-1)=0
<=> x ²-1/2x-1=0
<=>(x-1/4) ²=17/16
<=> x= ( √17+1)/4
x= (- √17 +1)/4
(x2-12x):2x-(3x-1):(3x-1)=0
⇔x²
<=>(x-1/4) ²=17/16
<=> x= ( √17+1)/4
x= (- √17 +1)/4