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A long expression is $2 m + 3 m^{2} + 4 m - m^{2} + 5 + 2 m^{2} - 3$ .
Group the like terms.
What is the simplified coefficient of $m^{2}$ ?

Class 7Like and Unlike TermsAlgebra

A3
B4
C8
D5

Step-by-Step Solution

m^{2}

-terms:

3 m^{2} - m^{2} + 2 m^{2} = 4 m^{2}

. (m-terms:

2 m + 4 m = 6 m

; constants: 5 - 3 = 2.) Coefficient of

m^{2}

is 4.

Answer: B) 4

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