andymontepeque21 andymontepeque21
  • 20-07-2020
  • Mathematics
contestada

Solve and check: 3 x2 + 5x + 6 + x − 1 x + 2 = 7 x + 3

Respuesta :

Halfmoon69889 Halfmoon69889
  • 20-07-2020

Answer:

3[tex]x^{2}[/tex] -2x +5=0

Step-by-step explanation:

Combine liked terms:

3[tex]x^{2}[/tex]+5x+x-1x+6+2=7x+3

3[tex]x^{2}[/tex]+6x-1x+8=7x+3

3[tex]x^{2}[/tex]+5x+8=7x+3

Subtract 3: 3[tex]x^{2}[/tex]+5x+8-3=7x+3-3

3[tex]x^{2}[/tex]+5x+5=7x

Now subtract 7x:

3[tex]x^{2}[/tex]+5x+5-7x=7x-7x

If you want combine liked terms:

3[tex]x^{2}[/tex]-7x+5x+5=0

3[tex]x^{2}[/tex]-2x+5=0

Hope this helps!

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