About 4 im not positive but I think it's correct if you subtract them after multiplying. FORGIVE ME IF IT'S NOT CORRECT.
Step-by-step explanation:
(10n² − 250) / (3n + 15)
Factor 10 from the numerator, and 3 from the denominator.
10 (n² − 25) / (3 (n + 5))
Factor the difference of squares:
10 (n − 5) (n + 5) / (3 (n + 5))
Divide n + 5 from the top and bottom:
10 (n − 5) / 3
Answer:
41
Step-by-step explanation:
Original number xy
x + y = 5
3 (10y + x) -1 = 10x + y
30y + 3x -1 = 10x + y
7x - 29y + 1 = 0
x = 5 - y
7 (5-y) - 29y +1 = 0
35 - 7y - 29y +1 = 0
36 - 36y = 0
36y = 36
y = 1
x = 5-1 = 4
Original number: 41
check: 4+1=5
3 x 14 - 1 = 42 -1 = 41
Answer:
first three expressions are polynomials and last three are not.
Step-by-step explanation:
last three expression has negative powers of X and some powers of Xs are not integers.
