Math, asked by monika7845, 1 year ago

Plz ans this question

Attachments:

Answers

Answered by sswaraj04
2

Answer:

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

Similar questions