7x^3. That is 7x cubed.... or 7x*7x*7x (where * means multiply).
You should get 343x
x2+7x x(x+7)
12
(x2 + 7x - 18) = (x + 9)(x - 2)
It is (x+3)(x+4) when factored
49/4 or 12.25
X squared + 7X + 12?
7x
When you subtract 7x^2 from 5x^2, you get -2x^2.
if its x(squared) its 7x(cubed) if its 2xX its 14x(squared)
It equals 53X- a number is squared when it is multiplied by itself, so 7X by 7X = 49X. 2X by 2X =4X, so 49X + 4X is 53X.
(7x + 8)(7x - 9)
If you mean: 4x squared+7x+4 then the discriminant is -15
7x-x2 = x(7-x)
(7x - 10)(x + 1)
7x2*x2 = 7x4
14x squared minus 7x to the 3rd power can be factored to 7x2(2-x).
x2+7x x(x+7)