babonotfound babonotfound
  • 18-08-2020
  • Mathematics
contestada

Consider this expression.
7m2 + (2m - 1)(m + 9)
What expression is equivalent to the given expression?
cm2 + m +

Respuesta :

MrRoyal
MrRoyal MrRoyal
  • 23-08-2020

Answer:

[tex]9m^2 + 17m- 9[/tex]

Step-by-step explanation:

Given

[tex]7m^2 + (2m - 1)(m + 9)[/tex]

Required:

Simplify

We start by opening the bracket

[tex]7m^2 + (2m(m + 9) - 1(m + 9))[/tex]

[tex]7m^2 + 2m^2 + 18m - m - 9[/tex]

Collect Like Terms

[tex]9m^2 + 17m- 9[/tex]

Hence, the equivalent expression is [tex]9m^2 + 17m- 9[/tex]

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