Question
Answer
$$2.47s^4-0.037s^3+1.38-(1.09s^4-0.095s^3+0.6s^2)=s^4+1$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}2.47s^4-0.037s^3+1.38-(1.09s^4-0.095s^3+0.6s^2)& \xlongequal{ }2s^4-0s^3+1.38-(1s^4-0s^3+0s^2) \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}2s^4+0s^3+1-s^4+0s^3+0s^2 \xlongequal{ } \\[1 em] & \xlongequal{ }2s^4 \cancel{0s^3}+1-s^4 \cancel{0s^3}0s^2 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}s^4+1\end{aligned} $$ | |
| ① | Remove the parentheses by changing the sign of each term within them. $$ - \left( s^40s^30s^2 \right) = -s^40s^30s^2 $$ |
| ② | Combine like terms: $$ \color{blue}{2s^4} \, \color{red}{ \cancel{0s^3}} \,+1 \color{blue}{-s^4} \, \color{red}{ \cancel{0s^3}} \,0s^2 = \color{blue}{s^4} +1 $$ |
This page was created using
Simplify polynomials calculator