tentukan perkalian a. -2a(a²(a²-3) b. 4x(3x-2y) c. 5p(3p²-q) d. -3m²(m-2n) e. 6xy(x²-y)

Mapel : Matematika
Kelas : VIII SMP
Bab : Persamaan Kuadrat

Pembahasan :
-2a(a²(a² - 3))
= -2a(a⁴ - 3a²)
= -2a⁵ + 6a³

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4x(3x - 2y)
= (4x)(3x) + (4x)(-2y)
= 12x² - 8xy

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5p(3p² - q)
= (5p)(3p²) + (5p)(-q)
= 15p³ - 5pq

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-3m²(m - 2n)
= (-3m²)(m) + (-3m²)(-2n)
= -3m³ + 6m²n

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6xy(x² - y)
= (6xy)(x²) + (6xy)(-y)
= 6x³y - 6xy²