kenzie472 kenzie472

28-01-2020
Mathematics

contestada

answer with work pretty plzzz

answer with work pretty plzzz class=

Respuesta :

TheRubyDragon825 TheRubyDragon825

28-01-2020

Answer:

48

Step-by-step explanation:

2x² + 3xy - 4y²

2 * 2² + 3 * 2 * (-4) - 4 x -4²

=48

Answer Link

profarouk profarouk

28-01-2020

Answer:

-80

Step-by-step explanation:

When x=2 and y= -4

2x² + 3xy - 4y² = 2(2)² + 3(2)(-4) - 4(-4)² = 8 - 24 -4(16) = -16 - 64 = -80

Answer Link

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