Question #f1b9e
1 Answer
Nov 18, 2017
Assuming there is an x in front of 29...
Explanation:
The first step I did was multiply the first term, 7, with the last term 4, which gives us 28.
The next step is to find 2 numbers which, when multiplied, gives you 28, and, when added, gives you 29. 29 is the middle term. Because those 2 numbers are 1 apart, it gives us the hint that the 2 numbers we are trying to find are 1 and 28.
The next step is to go back to the original problem and split the middle term.
Now, we can group the trinomial by factoring x out of the first 2 terms and a 4 out of the second 2 terms.
And that is the answer.
