Processing Math: Done
Solution 2.1:1b
From Förberedande kurs i matematik 1
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- | + | When the factor <math>xy</math> is multiplied by the expression inside the brackets, <math> 1+x+x^2 </math>, the distributive rule gives that all three terms <math>1</math>, <math>x</math> and <math>-x^2</math> are multiplied by <math>xy</math>, | |
- | When the factor <math>xy</math> is multiplied by the expression inside the brackets, <math> 1+x+x^2 </math>, the distributive rule gives that all three terms <math>1</math>, <math>x</math> and <math>-x^2</math> are multiplied by <math>xy</math> | + | |
- | < | + | {{Displayed math||<math>\begin{align} |
- | { | + | (1+x-x^2) &= 1\cdot xy + x\cdot xy -x^2\cdot xy\\[3pt] |
+ | &= xy+x^2y-x^3y\,\textrm{.} | ||
+ | \end{align} | ||
+ | </math>}} |
Current revision
When the factor
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