9514 1404 393
Answer:
(x +3)(x -3)(x +2i)(x -2i)
Step-by-step explanation:
The factoring to quadratics makes use of the fact that -36 = (-9)(4).
x^4 -5x^2 -36
= x^4 -9x^2 +4x^2 -36
= x^2(x^2 -9) +4(x^2 -9)
= (x^2 +4)(x^2 -9)
The form for factoring the difference of squares comes into play here. Of course -4 = (2i)^2.
= (x^2 -(2i)^2)(x^2 -3^2)
= (x -2i)(x +2i)(x -3)(x +3) . . . factored to linear terms
Answer:1/6
Step-by-step explanation:
15+3 =18
= 1/6
Answer: 25 dollars per game
Step-by-step explanation:
Answer:
20% Profit percentage
Step-by-step explanation:
Since Raghu bought 80 oranges at 3Rs each, his total expense (E) is:
Now for his earnings, he sold 30% of the oranges for 5Rs each and 70% for 3Rs each. Therefore, his earnings are represented by the following expression:
His profit percentage (%) can be found as follows:
There are 7 terms in this series.