Question

Multiply: (-11x²y)(9x³y)
a) -99x^5y²
b) -99x^5y³
c) -99x^6y²
d) -99x^6y³

Answer 1

To find the product of (-11x²y)(9x³y), multiply the coefficients to get -99, and add the exponents of the variables to get x⁵y², resulting in -99x⁵y².

Step-by-step explanation:

To multiply the given expressions (-11x²y)(9x³y), we need to multiply the coefficients and the variables separately, and apply the exponent rules. Firstly, we multiply the coefficients (-11) and (9) to get -99. Then, we multiply the variables by adding their exponents: x²*x³ gives us x⁵ (since 2+3=5) and y*y gives us y². Therefore, the final resultant expression is -99x⁵y².