Answer:
(- 1, 2 )
Step-by-step explanation:
Given the 2 equations
- 3x - 5y = - 7 → (1)
- 4x + 5y = 14 → (2)
Add the 2 equations term by term to eliminate y , that is
- 7x + 0 = 7
- 7x = 7 ( divide both sides by - 7 )
x = - 1
Substitute x = - 1 into either of the 2 equations and solve for y
Substituting into (1)
- 3(- 1) - 5y = - 7
3 - 5y = - 7 ( subtract 3 from both sides )
- 5y = - 10 ( divide both sides by - 5 )
y = 2
solution is (- 1, 2 )
(n-1)+n+(n+1)
With n as the middle of 3 integers, n-1 is the integer just before n and n+1 is the integer just after n.
<h2>
The binomial is a factor of the polynomial.</h2>
Step-by-step explanation:
If a polynomial is divided by a binomial and the remainder is 0.
Then the binomial is a factor of the polynomial.
If a polynomial g(x) is divided by (x-a) ,it gives g(a) as remainder
Then g(x) = (x-a) Q(x) + g(a)
Hera g(a) = 0
So, g(x) = (x-a) Q(x)
It shows that (x-a) is a factor of g(x)
