Answer:
The solution of this expression is
and
.
Step-by-step explanation:
The procedure for solution of exercise A is described below:
1) We expand the expression.
2) The resulting expression is rearranged into the form of a second order polynomial.
3) Roots are found by Quadratic Formula.
Step 1:



Step 2:

Step 3:



The solution of this expression is
and
.
Answer:
3
Step-by-step explanation:
The factors of 15 are: 1, 3, 5, 15
The factors of 42 are: 1, 2, 3, 6, 7, 14, 21, 42
Then the greatest common factor is 3.
Answer:
A=100
Step-by-step explanation:
B=120 incorrect
C=400 incorrect
D=600 incorrect
A=p (1+r)^t
A future value?
P present value 1050
r interest rate .015
t time 18/12
A=1,050×(1+0.015)^(18÷12)
A=1,073.71
The answer would be 108 because you take 9 and times it by 12 which gives you 108