Question

Find Values of 27m^3 + 8n^3 if 3m + 2n = 8 and mn = 2​

Answer 1

Answer:

224

Step-by-step explanation:

• mn=2 implies n=2/m
• 3m+4/m=8
• 3m^2 - 8m +4=0
• m=2 or m= 2/3
• n=1 or n=3

if m=2 and n=3 then

27(2)^3+8(1)^3=224

if m=2/3 and n=3 then

27(2/3)^3+8(3)^3=224

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