Rational Number are set of numbers that can be written as a/b where a and b are integers, but b is not equal to 0; an integer or a fraction; for example: 6 can be expressed as 6/1 and 0.5 can be expressed as 1/2.
Since the variable x has an invisible one next to it, which is 1x, it is 6x.
Could you please provide the equation and the rest of the question?
I believe the last one about right triangles. That’s why Pythagorean Theorem works.
Step-by-step explanation:
x² + 4x − 4 = 8
x² + 4x − 12 = 0
(x + 6) (x − 2) = 0
x = -6 or x = 2
