angelinasarumova
angelinasarumova angelinasarumova
  • 24-09-2021
  • Mathematics
contestada

What is the value of the expression -3x²y + 4x
when x= -4 and y= 2?
a. -112
b. 80
c. -80
d. 272

Respuesta :

jnxbd jnxbd
  • 24-09-2021
The answer of this question is A. -112
Answer Link
DᴀʀᴋPᴀʀᴀᴅᴏx
DᴀʀᴋPᴀʀᴀᴅᴏx DᴀʀᴋPᴀʀᴀᴅᴏx
  • 24-09-2021

[tex] \huge\mathfrak{Answer}[/tex]

By Plugging the value of x and y :

  • [tex] - 3 {x}^{2} y + 4x[/tex]

  • [tex]( - 3 \times ( - 4) {}^{2} \times 2) + (4 \times - 4)[/tex]

  • [tex]( - 3 \times 16 \times 2) + ( - 16)[/tex]

  • [tex] - 96 - 16[/tex]

  • [tex] - 112[/tex]

therefore, the answer is - 112

Answer Link

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