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Chapter 1: Q 33. (page 21)

In the following exercises, evaluate the following expressions.

When x = 4, y = 1

x2+3xy-7y2

Short Answer

Expert verified

21

Step by step solution

01

Step 1. Given information

The given expression isx2+3xy-7y2.

02

Step 2. Substitute the given values into the expression.

Substitute 4 for x and 1 for yinto the expression and simplify by applying the order of the operation.

42+341-712=16+12-7=28-7=21

03

Step 3. Conclusion

The simplified value is 21.

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