Sederhanakan bentuk aljabar
x²-3x+2
_______
x²-4
x²-3x+2
_______
x²-4
Penjelasan dengan langkah-langkah:
[tex] = \frac{ {x}^{2} - 3x + 2 }{ {x}^{2} - 4} [/tex]
[tex] = \frac{ {x}^{2} - 2x - x + 2 }{(x + 2)(x - 2)} [/tex]
[tex] = \frac{x(x - 2) - 1(x - 2)}{(x + 2)(x - 2)} [/tex]
[tex] = \frac{(x - 2)(x - 1)}{(x + 2)(x - 2)} [/tex]
[tex] = \frac{x - 1}{x + 2} [/tex]
Jawab:
1. (x-2)(x-1)
2. (x-2)(x+2)
Penjelasan dengan langkah-langkah:
1. x²-3x+2
= x²-x-2x+2
= x²-x-2x+2
= x(x-1) - 2(x-1)
= (x-2)(x-1)
2. x^2 - 4
= (x-2)(x+2)
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