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)]

Solution:

(10m - 6) - (7m - 4) [Given]

We have to find the expression that can be used to find the difference of the polynomials

= 10m - 6 - 7m + 4

We can write it as

= 3m - 2 ….. (1)

Consider

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

By further calculation

= 10m - 7m - 6 + 4

So we get

= 3m - 2 …. (2)

As (1) and (2) are same

The expression [10m + (-7m)] + [(-6) + 4] can be used to find the difference of the polynomials.

Therefore, the expression [10m + (-7m)] + [(-6) + 4] can be used to find the difference of the polynomials.

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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)]

Summary:

The expression which can be used to find the difference of the polynomials (10m – 6) – (7m – 4) is [10m + (-7m)] + [(-6) + 4].