Let x be our age, m be mother's age, and f be father's age. If mother is 25 years older than us, x+25=m
If father is 3 years older than mother, m+3=f
The product of all 3 ages are 32130
xmf=32130
Substitute m with x+25
m+3=f
x+25+3=f
x+28=f
Substitute now f and m:
xmf=32130
x(x+25)(x+28)=32130
(x^2+25x)(x+28)=32130
x^3+28x^2+25x^2+700x=32130
x^3 +53x^2+700x=32130
x^3+53x^2+700x-32130=0
m=25+!7
m=42
f=m+3
f=42+3
f=45
45 years old.
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