Answer:
x = 7
Step-by-step explanation:

Answer:
35, 67 and 78
Step-by-step explanation:
the angles are:
n, 2n-3 and 2n+8
there are 180 degrees in a triangle, so adding those terms together will give us 180
5n + 5 = 180
180 - 5 = 175
5n = 175
175 / 5 = 35
n = 35
now we have n we can put it in to the formula we have for the angles at the start:
n = 35
2n - 3 = 67
2n + 8 = 78
so the angles are
35, 67 and 78
Answer:

Step-by-step explanation:
In order to solve this problem, lets take the two terms in the binomial (4x and -3) and, for each one, multiply them by each term in the trinomial (2x^2, -7x, and 1):




Let's combine like terms to get our final answer:


Answer:
sometimes
Step-by-step explanation:
Answer:
and 
Step-by-step explanation:
n is a number.
a number squared is 
27 more than a number squared is 
n is a number.
three times a number is 3 times n, or 
one less than that is 
Hope this answer helped! :)