Exercise ID250

Algebra → Irrational Equations → Négyzetgyököt tartalmazó egyenletek
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Solve the following equation.

x2-4x2-11=x-1

x2-4x2-11=x-1 , 4x2-11>0 4x2>11,  x2>114 , x>112 , x<-112 x2-4x2-112=x-12 x2-4x2-11=x2-2x+1 x2-x2+2x-1=4x2-11 2x-1=4x2-11 2x-12=4x2-112 4x2-4x+1=4x2-11 4x2-4x2=4x-1-11 0=4x-12 12=4x x=3>112=1,658 x=3
x=3
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