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Evaluate the expression 7x2y, when x = 4 and y = 2. 112 224 542 718

User Aivar
by
7.9k points

2 Answers

4 votes

224 will be your answer

7 x^2 y

7 (4 ^2) 2=?

4x4=16

16x 7= 112

112x2 =224

User Ayie
by
8.1k points
6 votes
7x2y

Keep in mind that all the terms are just being multiplied together, like this:

7 * x * 2 * y

When we plug in 4 for x and 2 for y, we end up with this:

7 * 4 * 2 * 2 =
28 * 4 =
112

Your answer should be 112.
User Sean Murphy
by
8.6k points

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