Answer:
c. (x^2+1)(x^2+a)-a = x^2(x^2+a+1)
Step-by-step explanation:
You can use FOIL or the distributive property to expand the product of binomials, Then collect terms and factor out the common factor.
(x^2+1)(x^2+a)-a
= x^2(x^2 +a) +1(x^2 +a) -a
= x^4 +ax^2 +x^2 +a -a
= x^4 +ax^2 +x^2
= x^2(x^2 +a +1) . . . . . matches choice C
Answer:
b
Step-by-step explanation:
cut it in half, boom equal
Answer:
144
Step-by-step explanation:
If there is 12 inches in 1 foot, then do 12 times 12.
Answer:
22 years.
Step-by-step explanation:
(continued), How long will it take the 5000 Swiss Francs to accrue to 10000 = 2 x 5000 Swiss Francs.
Define T as
T = the time to double the investment.
Then, we have that
10000 = 5000(1 + 3.25%)^T
2 = (1 + 0.0325)^T
2 = (1.0325)^T
ln(2) = ln [ (1.0325)^T ]
ln(2) = T ln (1.0325)
T = ln(2) / ln(1.0325)
T = 21.6723317643
T = 22 years, rounded to the nearest year.