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Verified answer
Mapel : MatematikaKelas : VIII SMP
Bab : Persamaan Kuadrat
Rumus dasar :
(a - b)² = a² - 2ab + b²
Pembahasan :
(x - 1)²
= (x)² - 2(x)(1) + (1)²
= x² - 2x + 1
Verified answer
Materi : AljabarBahasan : Pemangkatan Bentuk Aljabar
Jawaban : x² - 2x + 1
Langkah - langkah :
(a + b)² = (a + b) (a + b) = a² + 2ab + b²
(x - 1)² = (x - 1) (x - 1) = x² - 2x + 1
(x - 1)² = x² - 2x + 1