Considering the conversion from exponent to radical, the equation that justifies why the expression is correct is.
The conversion of rational exponents to radical notation is modeled by:
In this problem, the expression is:
And the equation that shows that this is correct is:
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Considering the definition of the absolute value function, the expression is written as -7m + 56.
<h3>What is the definition of the absolute value function?</h3>The absolute value function is defined as follows:
That is, where the expression is negative, it is multiplied by -1, while where it is not negative the expression is kept.
In this problem, the expression is:
|7m - 56|
For m < 8, we have that one example is m = 0:
7(0) - 56 = -56.
The expression is negative, hence the signal is changed, that is:
|7m - 56| = -(7m - 56) = -7m + 56.
More can be learned about the absolute value function at brainly.com/question/24734454
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