Answer:
A: (3^2)*2
B: (2^3)*3
C: 2*19
D: (3^2)*9
Explanation:
We have:
A) 18= 3*3*2= (3^2)*2
B) 24=2*2*2*3=(2^3)*3
C) 38 = 2*19
D) 81 =3*3*9=(3^2)*9
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