Question

on 2x2 + 3xy + 4y2 + 18 for x = 2 and y = 3.​

Answer 1

Answer:

thanks so soooooo s. ooo much for your help

Answer 2

Answer:

What is the value of the expression 2x^2+3xy-4y^2 when x = 2 and y = - 4?

Algebra Expressions with One or More Variables

1 Answer

Nallasivam V

Sep 13, 2015

−

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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