Answer:
2x2-12x+3
Step-by-step explanation:
(x2-7x+4)-(-x2+5x+1)
x2-7x+4+x2-5x-1
2x2-12x+3
Answer:
Quadrilateral
Step-by-step explanation:
In the sandbox, opposite sides are equal.
However, using Pythagoras Theorem
![14^2\neq 12^2+8^2\\196 \neq 208](https://tex.z-dn.net/?f=14%5E2%5Cneq%2012%5E2%2B8%5E2%5C%5C196%20%5Cneq%20208)
Therefore, the sandbox cannot be a rectangle since if it were, each triangle must be a right triangle.
In the triangle
- If
, C is a right angle - If
, C is an acute angle - If
, C is an obtuse angle
Since
, Angles C and X are acute angles.
Therefore, the sandbox does not satisfy the properties of any known quadrilateral. It is simply a quadrilateral-shaped sandbox.