Processing Math: Done
To print higher-resolution math symbols, click the
Hi-Res Fonts for Printing button on the jsMath control panel.
|
jsMath
Solution 2.1:2e
From Förberedande kurs i matematik 1
We expand the two quadratics using the squaring rule, and then sum the result
|
| (a+b)2+(a−b)2=(a2+2ab+b2)+(a2−2ab+b2)=a2+2ab+b2+a2−2ab+b2=a2+a2+2ab−2ab+b2+b2=2a2+2b2. |
|
