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:
1. x = 10 , y = 2
Step-by-step explanation:
hope it helps ☺️
<span>To get the break-even
point, you have to divide the fixed cost by the selling price of a mailbox less
the variable cost in making a mailbox. In this case, we will have to divide $192,827.00 by $39.99 less $25.43. So, the
break-even point will be 13244 units.</span>
<span> </span>
Answer:
18x^3+30x^2
Step-by-step explanation:
im smart.
