Sederhanakanlah.
a. 5x3 × x7
b. 3x2 × 2x
c. 10x3 × 3x7 × x2
Pembahasan:
a. 5x3 × x7 = 5x3+7 = 5x10
b. 3x2 × 2x = 3 . 2 . x2+1 = 6x3
c. 10x3 × 3x7 × x2 = 10 . 3 . x3+7+2 = 30x12