Plz ans this question
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Step-by-step explanation:
a+2b=10
cubing both side
(a+2b)^3=10^3
a^3 + 8b^3+ 3*a*4b^2 + 3*2b* a^2 =1000
a^3 + 8b^3 +6ab(a+2b)=1000
a^3 + 8b^3+6*15*10=1000
a^3 + 8b^3+900=1000
a^3 + 8b^3=100
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