mjkayla4 mjkayla4
  • 28-10-2020
  • Mathematics
contestada

3x^2 – 10x = 8
(it’s to the 2nd power btw)

Respuesta :

PokeyAnna
PokeyAnna PokeyAnna
  • 28-10-2020

Answer:

x = 4, (-2/3)

Step-by-step explanation:

3(x^2) – 10x = 8

3(x^2) – 10x - 8 = 0

(3x + 2)(x - 4) = 0

(3x + 2) = 0

3x = -2

x = (-2/3)

(x - 4) = 0

x = 4

Answer Link
XdalqXhan
XdalqXhan XdalqXhan
  • 28-10-2020

Answer:

x = -2/3, 4

Step-by-step explanation:

move all terms to one side

3x^2 - 10x - 8 = 0

split the terms in 3x^2-10x-8 into two terms

3x^2+2x-12x-8=0

factor out common terms in first to and last to

x(3+2)-4(3x+2) =0

factor out common term 3x+2

(3x+2) (x-4)=0

solve for x

x=-2/3,4

Answer Link

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