This is how you solve it..
95/n=n
You could put 5 in and get 95/5=19.
The given equation is

And we have to solve for y.
Solving for y, means isolating y . And to isolate y, we need to get rid of 4 that is with y .
It means we have to separate 4 from y, and for separation , we have to perform division. That is, we have to divide both sides by 4, and that will be the next step .
So out of the four options, correct option is the last option .
The answer is B: 6 cm. You can use guess-and-check method, and plug the possible different answers into the equation x(x+6)=72, x stands for the width.
Answer:

Step-by-step explanation:
If a real number
is a zero of polynomial function, then

is the factor of this function.
If a complex number
is a xero of the polynomial function, then the complex number
is also a zero of this function and

are two factors of this function.
So, the function of least degree is

If the polynomial function must be with integer coefficients, then it has a form

I think the best way in memorizing the roots of numbers 1 - 30 is by through methods that would suitable for you but you must consider is the pattern in each number or the square, every number has it pattern and i know you realized it by now. I hope this would help