Tentukan hasil perkalianA. 5 × x²(6x-3y) B. (2x-2)(x+5)C. (x-5)(x²-4x+20)

A. 5 × x²(6x-3y)
6x³ -15x²y

B. (2x-2)(x+5)
(2x)(x) + (2x)(5) + (-2)(x)+ (-2)(5)
2x² + 10x – 2x – 10
2x² + 8x – 10

C. (x-5)(x²-4x+20)
(x)(x²)+(x)(-4x)+(x)(20)+(-5)(x²)+(-5)(-4x)+(-5)(20)
x³ – 4x² + 20x – 5x² + 20x – 100
x³ – 9x² + 50x – 100