2400/6000 multiplied by 100 = 40%
Remark
You'll see it a whole lot easier if you make a substitution so that it looks like something you have already seen
Solution
let y = x^2
x^4 = x^2 * x^2
x^4 = y * y
x^4 = y^2
Now the expression becomes
y^2 + 8 y - 9 = z
(y + 9)(y - 1) = z
Now put the x^2 back in.
(x^2 + 9) ( x^2 - 1) = z
x^2 - 1 becomes x + 1 and x - 1. At this level x^2 + 9 can't be factored.
Answer
(x^2 + 9) (x + 1)(x - 1)
Answer:
8
Step-by-step explanation:
There are 2 cheeses, american and cheddar, and 4 meats, ham, bologna, turkey, and chicken. For every cheese, there are 4 options of meat. So then there are 2*4=8 sandwiches. If you are familliar with this concept, just multiply 2 and 4.
Then Nicolas would have:
4 and 1/16 of that one pizza
Its 15 boats bcuz...252+288=540 and 540/36= 15 boats :D
