Answer
$$3x^2+8\cdot2x^2+8=19x^2+8$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}3x^2+8\cdot2x^2+8& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}3x^2+16x^2+8 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}19x^2+8\end{aligned} $$ | |
| ① | $$ 8 \cdot 2 x^2 = 16 x^{2} $$ |
| ② | Combine like terms: $$ \color{blue}{3x^2} + \color{blue}{16x^2} +8 = \color{blue}{19x^2} +8 $$ |
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