cmk5305
cmk5305 cmk5305
  • 20-11-2021
  • Mathematics
contestada

Which is right? plz help and NO LINKS

Which is right plz help and NO LINKS class=

Respuesta :

Wallameg000
Wallameg000 Wallameg000
  • 20-11-2021

Answer:

C. x=-10 and x=3

Step-by-step explanation:

This equation can be solved through factoring. However, there is one step that must happen first.

First, subtract 30 from both sides

  • [tex]x^2+7x-30=0[/tex]

Then, factor using the knowledge that the 2 factors will add to 7 and multiply to -30.

  • [tex](x+10)(x-3)=0[/tex]

Next, using the zero product property, set each expression to zero.

  • x+10=0
  • x-3=0

Finally, solve each of these equations for x.

  • x=-10
  • x=3
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