Answer
$$7x7x\cdot3y3x\cdot9y=3969x^3y^2$$
Explanation
| $$ \begin{aligned}7x7x\cdot3y3x\cdot9y& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}7x21xy27xy \xlongequal{ } \\[1 em] & \xlongequal{ }147x^2y27xy \xlongequal{ } \\[1 em] & \xlongequal{ }3969x^3y^2\end{aligned} $$ | |
| ① | $$ 7 x \cdot 3 y = 21 x y $$$$ 3 x \cdot 9 y = 27 x y $$ |
This page was created using
Simplify polynomials calculator