alyssaa87 alyssaa87

15-08-2021
Mathematics

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How to do this question?

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mistressofdark mistressofdark

15-08-2021

Answer:

40

Step-by-step explanation:

2x² - 5y + 7 when x = 2 and y = -5

2(2)² - 5(-5) + 7

= 2(4) -5(-5) + 7

= 8 + 25 + 7

= 40

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