Materi : Bentuk dan Persamaan Kuadrat
x² - 3x + 5 = 0
( x - 3/2 )² = -5 + (-3/2)²
( x - 3/2 )² = -20/4 + 9/4
( x - 3/2 ) = ± √[ -11/4 ]
x = 3/2 ± ½i√11
Himpunan Penyelesaian
x = ½( 3 + i√11 )
= 9 + 6i√11 - √11 - ½( 9 + 3i√11 ) - 5
= 4/2 + 9/2i√11 - √11
x = ½( 3 - i√11 )
= 9 - 6i√11 + √11 - ½( 9 + 3i√11 ) - 5
= 4/2 - 15/2i√11 + √11
Semoga bisa membantu
[tex] \boxed{ \colorbox{navy}{ \sf{ \color{lightblue}{ Answer\:by\: BLUEBRAXGEOMETRY}}}} [/tex]
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Materi : Bentuk dan Persamaan Kuadrat
x² - 3x + 5 = 0
( x - 3/2 )² = -5 + (-3/2)²
( x - 3/2 )² = -20/4 + 9/4
( x - 3/2 ) = ± √[ -11/4 ]
x = 3/2 ± ½i√11
Himpunan Penyelesaian
x = ½( 3 + i√11 )
= 9 + 6i√11 - √11 - ½( 9 + 3i√11 ) - 5
= 4/2 + 9/2i√11 - √11
x = ½( 3 - i√11 )
= 9 - 6i√11 + √11 - ½( 9 + 3i√11 ) - 5
= 4/2 - 15/2i√11 + √11
Semoga bisa membantu
[tex] \boxed{ \colorbox{navy}{ \sf{ \color{lightblue}{ Answer\:by\: BLUEBRAXGEOMETRY}}}} [/tex]