Question

radical 2x plus trei egal patru x​

Answer 1

Răspuns: atasat mai jos

Answer 2

rad2x+3= 4x

rad2= 4x-3

2x=16x^2-24x+9

2x-16x^2+24x-9=0

26x-16x^2-9=0

-16x^2+26x-9=0

16x^2-26x+9=0

16x^2-8x-18x+9=0

8x*(2x-1)-18x-9(2x-1)=0

(2x-1)*(8x-9)=0

1) 2x-1=0

2)8x-9=0

Pt 1:x=1/2

Pt 2: x=9/8

Verificăm:

Pt 1: rad 2*1/2+3=4*1/2

=> 4≠(F)

Pt 2: rad2*9/8+3=4*9/8

=> 9/3=9/2

=> S=9/8

Baftă!