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Pavlova-9 [17]
3 years ago
10

The answer is correct? If it’s wrong please explain me how to solve it :’)

Mathematics
1 answer:
cricket20 [7]3 years ago
7 0

Answer:

48

Step-by-step explanation:

x = -2 y =3

3x² - 2xy²

3(-2)² -2(-2)(3)²

square first

3*4 -2(-2)*9

multiplty from left to right

12-2(-2)*9

multiply from left to right again

12 -(-36) subtract using rule for integers that double minus is plus

12 + 36

48

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denpristay [2]

Answer:

La cantidad de dinero

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Quique tiene = y = 4.67 €

Step-by-step explanation:

Representemos la cantidad de dinero

Celia tiene = x

Quique tiene = y

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x + y = 14

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Si Celia tuviera 1 euro, tendría el doble de dinero que Quique.

Por lo tanto,

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Nosotros sustituimos

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