Because a rational number is basically a fraction or decimal form
Answer: 5
Step-by-step explanation:
Subtract 6 from both sides of the equation to get 5x=25 then divide both sides by 5 to isolate x. Then you get x=5.
The vertex would be (-6,15)
We can factor a polynomial by finding its roots. In particular, a quadratic equation has (at most) two roots , which would allow us to write the polynomial as
To find the solutions, we can use the quadratic formula
So, the two solutions are
And so we can factor the polynomial as follows: