It's kind of tough to look for the 'answer', because it's not even clear what the question is.
All I can think of is: Somebody tells you what 'n' is, and then you're supposed to
figure out what number 5('n' squared + 3n) is. If that's the question, then of course
you need to know what 'n' is before you can start on it.
I'm, not at all sure that that's the question, but it's all I can think of, so here's an example:
Let's say that 'n' is 1 .
n2 = 1
3n = 3
n2 + 3n = 4
5('n' squared + 3n) = 54 = 625
That may not be too helpful, because, as I said above, the way you posted
the question, I can't see what the 'problem' (the assignment) is.
4z squared (z+4) (z+4)
No
106
The verbal expression of 3b to the second power plus 2a to the 3rd power is "three b squared plus two a cubed."
If your Problem is organized like this: A x squared plus B x plus C, the equation is: (B plus or minus the square root of(B squared minus 4 A C)) over 2A
My iTouch calculator isn't working, so I will simplify the problem for you: x to the 5th power = -4
4z squared (z+4) (z+4)
104
this problem cannot be factored
No
106
(6x + 1)(x + 13)
The verbal expression of 3b to the second power plus 2a to the 3rd power is "three b squared plus two a cubed."
If your Problem is organized like this: A x squared plus B x plus C, the equation is: (B plus or minus the square root of(B squared minus 4 A C)) over 2A
Since a squared plus b squared equals c squared, that is the same as c equals the square root of a squared plus b squared. This can be taken into squaring and square roots to infinity and still equal c, as long as there is the same number of squaring and square roots in the problem. Since this question asks for a and b squared three times, and also three square roots of a and b both, they equal c. Basically, they cancel each other out.
(a+b)^2=a^2+b^2+2ab it should read "the quanitity "a plus b" squared equals a squared plus b squared plus two a times b" See related link below for a picture that shows it graphically.
A number is x squared plus forty four is equal to the number x to the fourth power times three?