Question

Proszę o wykonanie zadanie w ZAŁĄCZNIKU!!!

Answer 1

Odpowiedź:

d)

2x + 1 = 2 - √3x

2x + √3x =  2  - 1

x(2 + √3) = 1

x = 1/(2 + √3) = (2 - √3)/(4 - 3)= (2 - √3)/1 = 2 - √3

e)

√5x - 3x = 1 - 5x

√5x - 3x + 5x  = 1

√5x + 2x = 1

x(√5 + 2) = 1

x = 1/(√5 + 2) = (√5 - 2)/(5 - 4) = (√5 - 2)/1 = √5 - 2

f)

x(√3 + 1) = 2(x + 1)

√3x + x = 2x + 2

√3x + x - 2x  = 2

√3x - x = 2

x(√3 - 1) = 2

x = 2/(√3 - 1) = 2(√3 + 1)/(3 - 1) = 2(√3 + 1)/2 = √3 + 1