contestada

which is equivalent to the following expression? (2x^2+4xy-y^2)+(x^2+3xy-y^2)
a. 3x^2-7xy-2y^2
b. 3x^2+7xy+2y^2
c. 3x^2+7xy-2y^2
d. 3x^2-7xy+2y^2

Respuesta :

annswer:

−

80


Explanation:

2

(

2

)

2

+

[

3

(

2

)

(

−

4

)

]

−

4

(

−

4

)

2


2

(

4

)

+

[

−

24

]

−

4

(

16

)


8

−

24

−

64

=

8

−

88

=

−

80


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InnocentSoul

My options are different,

A. 3x2-7xy-2y2

B. 3x4+7xy-2y4

C. 3x2+7xy-2y2

D. 2x2-7xy+2y2

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