Question

Solve for x in the diagram below. x 2x (x+10)

Answer 1

Answer:

$x^{2} +10x^{3}$

Step-by-step explanation:

$x^{2} x(x+10)\\x^{4}+10x^{3}$

Answer 2

The square mark indicates that it is a right angle which is 90 degrees.
x+2x+x+10=90
4x+10=90
-10 -10
4x=80
Divide both sides by 4
x= 20