canonmille2 canonmille2

28-11-2018
Mathematics

contestada

2x^2 - y x=3 y= -2 Image available

2x2 y x3 y 2 Image available class=

Respuesta :

ash34321 ash34321

28-11-2018

The answer would be 20
3^2=9x2= 18
18 -(-2) = 20

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jimrgrant1 jimrgrant1

28-11-2018

Answer:

A

Step-by-step explanation:

Evaluate the expression by substituting x = 3 and y = - 2 into it

note that - ( - ) is equivalent to +

2x² - y

= 2 × 3² - (- 2)

= 2 × 9 + 2 = 18 + 2 = 20 → A

Answer Link

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