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snow_lady [41]
3 years ago
9

5x^2-9 when x = -2

Mathematics
1 answer:
jekas [21]3 years ago
8 0

5(-2)² - 9

First, solve the one in the bracket which is -2 × -2 which gives us =4

5(4) - 9

Then, multiply 5 with 4 so

20 - 9

Then you'll get 11

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