Answer:
x(6+7x)
Step-by-step explanation:
Answer:
6x^2-3x
Step-by-step explanation:

Hope this helps!
The answer is C.
You need you use Pythagoras theorem 2 times to have 2 equations with the same sides i.e. for example a2 + b2 = 81 and a2 - b2 = 9.
You can do it as you have different triangles but with the same sides.
Answer:
-All integers are whole numbers.
-All rational numbers are natural numbers.
Step-by-step explanation: