Question

Evaluate. 3x²+7xy-2y² for x=2 and y=-3

Answer 1

To evaluate the expression 3x²+7xy-2y² for x=2 and y=-3, substitute the values and simplify the expression.

Step-by-step explanation:

To evaluate the expression 3x²+7xy-2y² for x=2 and y=-3, we substitute the given values of x and y into the expression.

So, the expression becomes:

3(2)²+7(2)(-3)-2(-3)²

Now, we simplify each term:

3(4)+7(-6)-2(9)

12-42-18

Finally, we add and subtract the terms to get the final result:

-48