It can be factorised as
so the solutions are
x= 10 and x = -9
so the sum of the solutions is 10 -9 which is 1
so the solutions are
x= 10 and x = -9
so the sum of the solutions is 10 -9 which is 1
Is 21 3/7 a rational or an irrational number?
1 answer:
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Given:
The system of equations is
To find:
The solution of given system of equations.
Solution:
we have,
...(i)
...(ii)
From (i) and (ii), we get
Divide both sides by 3.
Putting x=2 in (i), we get
So, the solution is (2,4).
For ,
x y
0 0
1 2
For ,
x y
0 6
1 5
Plot these points on a coordinate plane and connect them by straight line as shown below.
From the below graph it is clear that both lines intersect each other at (2,4). So, the solution is (2,4).
Therefore, the solution of system of equations is (2,4).
