Which expression is equivalent to (7x3)2(x3)?
1 answer:
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Given:
The system of equation:
-------- (1)
--------- (2)
To find the values of x and y.
We will use substitution method.
From (1) we get,
We will put the value of y in (1) and we get,
or,
Now we will apply middle term factor method.
so, x = 4 and 1
Now,
Substitute x = 4 in (1) we get,
And putting x = 1 in (1) we get,
Hence, the solution of the given system of equation is (4,-8) and (1,-5)
Thus, Option A is the correct answer.