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Maka,
Nomor 1.
a.
b.
Nomor 2.
Komposisi:
Sehingga,
a.
Rumus berikut diberikan dengan -b/c
Sehingga,
-4/(-3) = 4/3
b.
α²+β²-2αβ = (α-β)² = √(10²) = 10
c.
(α-β)² - (α+β)²
α² - 2αβ + β² - (α²+2αβ+β²)
-4αβ = -4 x (-3/2) = 6
d.
6(α+β)-3(α-β)
6 x (-2) - 3√10
-12 - 3√10