NatzyPH1m0 NatzyPH1m0

22-02-2021
Mathematics

contestada

What is the result when 12x2-7y2 is added by -10x2+y2?
A.2x2-6y2
B.2x2+6y2
C.-2x2-8y2
D.-2x2+8y2

Respuesta :

devishri1977 devishri1977

22-02-2021

Answer:

A

Step-by-step explanation:

12x² - 7y² - 10x² + y² = 12x² - 10x² - 7y² + y²

= (12 - 10)x² + (-7 + 1)y²

= 2x² + (-6y²)

= 2x² - 6y²

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