Pemfaktoran bentuk aljabar
bentuk
1. x kuadrat-6x+9
2.x kuadrat -18x+81
bentuk
1. x kuadrat-6x+9
2.x kuadrat -18x+81
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= x² - 3x - 3x + 9
= x(x - 3) - 3(x - 3)
= (x - 3)(x - 3)
= (x - 3)²
x² - 18x + 81
= x² - 9x - 9x + 81
= x(x - 9) - 9(x - 9)
= (x - 9)(x - 9)
= (x - 9)²