pearlagarza pearlagarza

18-09-2020
Mathematics

contestada

evaluate the expression below if x=-1 and y=3.
3x²-y²

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nataliasanxchez nataliasanxchez

18-09-2020

the answer is -12 I believe

Answer Link

18-09-2020

Answer:

-6

Step-by-step explanation:

3x² - y²

plug in x and y

3(-1)² - (3)²

according to PEMDAS, solve the exponents first.

3(1) - 9

multiply

3 - 9

subtract

= -6

Answer Link

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