(3x-2)^(1/2)=4-x

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Solution for (3x-2)^(1/2)=4-x equation:


D( x )

3*x-2 < 0

3*x-2 < 0

3*x-2 < 0

3*x-2 < 0 // + 2

3*x < 2 // : 3

x < 2/3

x in <2/3:+oo)

(3*x-2)^(1/2) = 4-x // - 4-x

(3*x-2)^(1/2)+x-4 = 0

(3*x-2)^(1/2) = x-4 // - x-4

(3*x-2)^(1/2) = -(x-4) // ^ 2

abs(3*x-2) = (-(x-4))^2 // - (-(x-4))^2

abs(3*x-2)-(-(x-4))^2 = 0

x in (-oo:+oo)

abs(3*x-2)

3*x-2 >= 0

3*x-2 >= 0 // + 2

3*x >= 2 // : 3

x >= 2/3

x in <2/3:+oo)

3*x-(-(x-4))^2-2 = 0

x in (-oo:2/3)

2-(-(x-4))^2-(3*x) = 0

abs(3*x-2)-(-(x-4))^2 = 0

/ | 2-(-(x-4))^2-(3*x) = 0 i x in (-oo:2/3) | 3*x-(-(x-4))^2-2 = 0 i x in <2/3:+oo)

x in (-oo:2/3)

2-(-(x-4))^2-(3*x) = 0

2-1*(4-x)^2-3*x = 0

2-1*(4-x)^2-3*x = 0

5*x-x^2-16+2 = 0

5*x-x^2-14 = 0

5*x-x^2-14 = 0

5*x-x^2-14 = 0

DELTA = 5^2-(-14*(-1)*4)

DELTA = -31

DELTA < 0

1 = 0

1 = 0

x in <2/3:+oo)

3*x-(-(x-4))^2-2 = 0

3*x-1*(4-x)^2-2 = 0

3*x-1*(4-x)^2-2 = 0

11*x-x^2-16-2 = 0

11*x-x^2-18 = 0

11*x-x^2-18 = 0

11*x-x^2-18 = 0

DELTA = 11^2-(-18*(-1)*4)

DELTA = 49

DELTA > 0

x = (49^(1/2)-11)/(-1*2) or x = (-49^(1/2)-11)/(-1*2)

x = 2 or x = 9

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

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

( x-2 )

x-2 = 0 // + 2

x = 2

( x-9 )

x-9 = 0 // + 9

x = 9

x in { 2, 9 }

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