Which expression can be used to find the difference of the polynomials?

(10m – 6) – (7m – 4)
[10m + (–7m)] + [(–6) + 4]
(10m + 7m) + [(–6) + (–4)]
[(–10m) + (–7m)] + (6 + 4)
[10m + (–7m)] + [6 + (–4)]

The expression that can be used to find the difference of the polynomials (10m-6)-(7m-4) eliminating the parentheses and grouping similar terms is [10m+(-7m)]+[(-6)+4] (First option)

Solution:

(10m-6)-(7m-4)

Eliminating the parentheses multiplying the signs:

(10m-6)-(7m-4)=10m-6-7m+4

Grouping similar terms:

(10m-6)-(7m-4)=[10m+(-7m)]+[(-6)+4]

A. [10m + (–7m)] + [(–6) + 4]

Step-by-step explanation:

Just took the test !

30 units^2

step-by-step explanation:

area is l × w

the length is 3

and the width is 10

3 × 10= 30 units squared