SOLUTION: hi I have a question and I am unable to answer it so here goes: Show that the area of this shape can be written as {{{ 5x^2 + 4x- 9 }}} Now the shape is of a letter L an

Question 773088: hi
I have a question and I am unable to answer it so here goes:
Show that the area of this shape can be written as
Now the shape is of a letter L and all angles are 90 degrees
4 measurements are shown against the 4 x Sides:
LHS
Top
Bottom
RHS Smaller side
Unsure how to work this out as the answer I get is I don't get the
I'm I doing something wrong
Thanks
MJ
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
This shape is like a rectangle which is missing an upper-right rectangle piece. We can find some projected length distances to find the missing rectangle's width and height.

DRAW the figure so you see what my description is.
Let and let
The area of the missing rectangular piece is .

First find actual u and v in their simplified form; then, find the area of u*v.

and

The
and just the L by itself would be :
The L=
square units
.
.
That should simplify to
I just do not get what you report it should be.
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