Question
Answer
$$(-2)^2+6\cdot(-2)+9=1$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}(-2)^2+6\cdot(-2)+9& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}(-2)^2+(-12)+9 \xlongequal{ } \\[1 em] & \xlongequal{ }4+(-12)+9 \xlongequal{ } \\[1 em] & \xlongequal{ }4-12+9 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}1\end{aligned} $$ | |
| ① | $$ 6 \cdot -2 = -12 $$ |
| ② | Combine like terms: $$ \color{blue}{4} \color{red}{-12} + \color{red}{9} = \color{red}{1} $$ |
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