Simplification: the square of 3a-6ab / radical a-2b

Simplification: the square of 3a-6ab / radical a-2b

We have known that the complete square formula can be expressed by the area of a plane geometric figure. In fact, some algebraic equations can also be expressed in this form. Please write the algebraic identity shown in the figure:______ ．

The total area of each part is = AB + AB + AB + A2 + A2 + B2 = 2A2 + 3AB + B2, the area of the whole figure is = (2a + b) (a + b), (2a + b) (a + b) = 2A2 + 3AB + B2

Some algebraic identities can be expressed by calculating the area of a geometric figure. A figure is a square with side length X. please use two different methods to represent a figure

A2-B2 = (a + b) (a-b) (a + b) ^ 2 = A2 + 2Ab + B2 do not see the graph, it is estimated that these things

Try to draw a geometric figure so that its area can be expressed as: (a + b) (a + 3b)

1. Define the length of two line segments, a and B
2. Draw a right triangle so that its two right angles are (a + b) and (a + 3b), then its area is: (a + b) (a + 3b)