aliannaislit
aliannaislit aliannaislit
  • 24-04-2019
  • Mathematics
contestada

Describe the error(s) that occurred and show the correct solution.

Describe the errors that occurred and show the correct solution class=

Respuesta :

calculista
calculista calculista
  • 04-05-2019

Answer:

[tex]-x^{2}+4x[/tex]

Step-by-step explanation:

we have

[tex](x^{2}+x)-(2x^{2} -3x)[/tex]

step 1

Eliminate the parenthesis

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

The symbol of the term 3x is incorrect, must be positive instead of negative

so

[tex]-(-3x)=+3x[/tex]

Group terms that contain the same variable

[tex](x^{2}-2x^{2})+(x+3x)[/tex]

Combine like terms

[tex]-x^{2}+4x[/tex]

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