Respuesta :

Answer:

value of expression is 8

Step-by-step explanation:

Given Expression :- -3xy + 4x

We have to find the value of given equation when x = -4 and y = 2

We need to substitute the value of x and y in the given equation !

- 3xy + 4x = - 3 ( -4 ) ( 2 ) + 4 ( - 4 )

= 12 ( 2 ) - 16

= 24 - 16

= 8

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Method to solve :-

  • When a quantity with negative sign is multiplied by a quantity of positive sign then the result will be in negative !

  • When a negative quantity is multiplied by a negative quantity then the result will be in positive !