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28-02-2020
Mathematics

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Evaluate 2x2 – 4y2 when x = 2 and y = – 3

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adebayodeborah8 adebayodeborah8

28-02-2020

Answer:

-288

Step-by-step explanation:

2x² -4y²

when x = 2 and y = -3

substitute the value x = 2 and y -3

2(2)² - 4(-3)²

2(4) × - 4(9)

8 × -36

-288

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