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<span>g^2 – 4g – 21 = (g – 7)(g +3 )
hope it helps</span>
Step 1:
For a number, let us use n.
We know the equation equals 54, and we also know that 54 is sixteen less than n. Thus, we can make the equation:

Step 2:
Now, to solve the equation, we simply have to get the integers to one side. To do this, add 16 to both sides of the equal sign. Our answer is:

Hope this helps.
That would be 4/8. Hope it helps! :)