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sashaice [31]
3 years ago
5

-a^2-b+5ab with a=4 and b=-7

Mathematics
1 answer:
Svetradugi [14.3K]3 years ago
3 0

Answer:

-149

Step-by-step explanation:

To solve, we must first plug our known values for a and b into the equation and then follow the order of operations.

1. -(4)^{2} -(-7)+5(4)(-7)

2. -16-(-7)+5(4)(-7)

3. -9+5(4)(-7)

4. -9+20(-7)

5. -9-140=-149

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