3 years ago

¿Cuál es el resultado de (-8x²-11x+14)+(6x²-8x+4)?

Mathematics

1 answer:

Neko [114]3 years ago

7 0

(-8x²-11x+14)+(6x²-8x+4)

Combine términos iguales.

Este es su resultado:

-2x²-19x+18

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Solve the system using substitution <br> y=8-x <br> 7=2-y

Alexus [3.1K]

If y=8-x then you can plug that into the equation like 7=2-(8-x). When you distribute the equation becomes 7=2-8+x. Once you combine like terms the equation becomes 7=-6+x. Then you subtract 6 from both sides, which gives you 13=x.
To find y just put 13 where x was in the first equation. Y=8-13.
Y=-5
X=13

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3 years ago

How many solutions does this system have? -6x + 18y = 264. - 12x - 36y = 130 . PLS HELP ill give brainliest

Alchen [17]

Answer:

x=−44 + 3y

x= $-\frac{65}{6} - 3y$