Question

The result of the multiplication $4x^2{y}^6\times 1.5x^7{y}^3$ is:

• A. $5x^9{y}^9$
• B. $6x^9{y}^8$
• C. $6x^9{y}^9$
• D. $5x^{20}{y}^8$
• E. $6x^{20}{y}^8$

Answer 1

The correct option is C $6x^9{y}^9$

$4x^2{y}^6\times 1.5x^7{y}^3=(4\times 1.5)x^{2+7}{y}^{6+3}=6x^9{y}^9$.