Simplify : 1.5^3 + 4.7^3 + 3.8^3 - 3 × 1.5 × 4.7 × 3.81.5^2 + 4.7^2 +…

Question

Simplify : 1.5^3 + 4.7^3 + 3.8^3 - 3 × 1.5 × 4.7 × 3.81.5^2 + 4.7^2 + 3.8^2 - 1.5 × 4.7 - 4.7 × 3.8 - 3.8 × 1.5 = ?

Accepted Answer

Option C. 10. Answer & Solution Answer: Option C Solution: 1.5^3 + 4.7^3 + 3.8^3 - 3 × 1.5 × 4.7 × 3.81.5^2 + 4.7^2 + 3.8^2 - 1.5 × 4.7 - 4.7 × 3.8 - 3.8 × 1.5 = ( 1.5 + 4.7 + 3.8 ) \ 1.5^2 + 4.7^2 + 3.8^2 - 1.5 × 4.7 - 4.7 × 3.8 - 3.8 × 1.5 \ \ 1.5^2 + 4.7^2 + 3.8^2 - 1.5 × 4.7 - 4.7 × 3.8 -…