Answer:
Answer: A real number that is not rational is called irrational. Irrational numbers include √2, π, e, and φ. The decimal expansion of an irrational number continues without repeating.
Area of one triangle = 
For 5 triangles = 
<em>-</em><em> </em><em>BRAINLIEST</em><em> answerer</em>
B would be 11 (if thats what youre asking)
Hope this helps!
The equations

and

are really the same, we're just setting
, or
.

So we get

x2 +3x-40= x2+8x-5x-40=x(x+8)-5(x+8)=. (x+8) (x-5).