Question

Write the following monomials using multiplication signs and underline the common factors.

(1) 8m , 4m²n
(2) 3x²y, 12xy²
(3) 15a²bc, 5ab, 20abc²

Answer 1

(1) 8m, 4m²n
8m = 2 × 2 × 2 × m
4m²n = 2 × 2 × m × m × n

(2) 3x²y, 12xy²
3x²y = 3 × x × x × y
12xy² = 2 × 2 × 3 × x × y × y

(3) 15a²bc, 5ab, 20abc²
15a²bc = 3 × 5 × a × a × b × c
5ab = 5 × a × b
20abc² = 2 × 2 × 5 × a × b × c × c