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4. Evaluate 5x2 + 16y for x = 2 and y = -3
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10 votes
4. Evaluate 5x2 + 16y for x = 2 and y = -3

User Wim Mertens
by
3.3k points

2 Answers

6 votes

Answer:

-28

Explanation:

=5(2)²+16(-3)

=5(4)+(-48)

=20-48

=-28

User Reming Hsu
by
3.4k points
0 votes

Answer:

-28

Explanation:

Expression: 5x²+16y

x=2 and y=-3

We'll substitute x as 2 and y as -3

5(2)²+16(-3)

Following Order of Operations, do the exponent part first

5(4)+16(-3)

Multiply

20-48

subtract

-28

Hope this helps

User Jashin
by
3.6k points
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