We’ll answer the first question since the exact one wasn’t specified. Please submit a new question specifying the one you’d like answered.
We have to factor the expressions.
For x^2+x-12. We factor -12 so that sum of the factors = 1
So we write x as 4x-3x
For 4x+16 used GCF method. GCF of 4 and 16 is 4. So factored out 4.
Then factor by grouping for x^2...
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