the3romines
the3romines the3romines
  • 10-04-2019
  • Mathematics
contestada

which expression is equivalent to (x+2)(3x-3)


a. 3x^2-6

b. 3x^2+3x-6

c. 3x^2+6x-6

d. 3x^2+9x-6

Respuesta :

BettaRasbora
BettaRasbora BettaRasbora
  • 10-04-2019

Answer:

[tex]3x^2+3x-6[/tex]

Step-by-step explanation:

[tex]\left(x+2\right)\left(3x-3\right)[/tex]

Use FOIL.

[tex]x\cdot \:3x+x\left(-3\right)+2\cdot \:3x+2\left(-3\right)[/tex]

[tex]3xx-3x+2\cdot \:3x-2\cdot \:3[/tex]

[tex]3x^2-3x+2\cdot \:3x-2\cdot \:3[/tex]

[tex]3x^2-3x+6x-6[/tex]

[tex]3x^2+3x-6[/tex]

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