Given that x= 3 and y=
5
First we will find the value for each expression then
compare the results.
The first expression is 3x^2 -
2y
We will substitute with x- 3 and y-
5
==> 3*3^2 - 2*5 = 27 - 10 =
17..........(1)
Now we will calculate the second expression
2x^2 - 3y
==> 2*3^2 - 3*5 = 18 - 15 =
3................(2)
Now the difference between the values
is 17-3 = 14.
Then we conclude that the value
of 3x^2 - 2y exceeds the value of 2x^2 - 3y by
14.
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