Penjelasan dengan langkah-langkah:
x + 1 = 0
x = –1
x² + 3x – 2 = (–1)² + 3(–1) – 2
= 1–2–3
= –4
x³ – 4x² + 5x + a = –4
(–1)³ – 4(–1)² + 5(–1) + a = –4
–1–4–5+4 = –a
–a = –6
pendahuluan
x = 0 - 1
x = -1
x² + 3x - 2
-1² + 3(-1) - 2
1 + -3 - 2
-2 - 2
-4
penyelesaian
x³ - 4x² + 5x + a = -4
-1³ - 4(-1²) + 5(-1) + a = -4
-1 - 4 + -5 + a = -4
-1 - 4 + -5 + 4 = -a
-6 = -a
6 = a
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Penjelasan dengan langkah-langkah:
x + 1 = 0
x = –1
x² + 3x – 2 = (–1)² + 3(–1) – 2
= 1–2–3
= –4
x³ – 4x² + 5x + a = –4
(–1)³ – 4(–1)² + 5(–1) + a = –4
–1–4–5+4 = –a
–a = –6
a = 6
pendahuluan
x + 1 = 0
x = 0 - 1
x = -1
x² + 3x - 2
-1² + 3(-1) - 2
1 + -3 - 2
-2 - 2
-4
penyelesaian
x³ - 4x² + 5x + a = -4
-1³ - 4(-1²) + 5(-1) + a = -4
-1 - 4 + -5 + a = -4
-1 - 4 + -5 + 4 = -a
-6 = -a
6 = a