taylorjulia449 taylorjulia449
  • 24-06-2022
  • Mathematics
contestada

X: 4x^2+16 -20=0
What is x

Respuesta :

auvrellia auvrellia
  • 24-06-2022
the answer to X: 4x^2+16 -20=0 is that d equals 5
X=5
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fieryanswererft
fieryanswererft fieryanswererft
  • 24-06-2022

Answer:

[tex]\boxed{\sf x = 1, \ x = -5}[/tex]

Explanation:

[tex]\rightarrow \sf 4x^2 + 16x - 20 = 0[/tex]

[tex]\rightarrow \sf 4(x^2 + 4x - 5) = 0[/tex]

[tex]\rightarrow \sf x^2 + 4x - 5 = 0[/tex]

[tex]\rightarrow \sf x^2 + 5x -x- 5 = 0[/tex]

[tex]\rightarrow \sf x(x + 5) -1(x+ 5) = 0[/tex]

[tex]\rightarrow \sf (x-1)(x+ 5) = 0[/tex]

[tex]\rightarrow \sf x = 1, \ x = -5[/tex]

Answer Link

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