Least Common Multiple = (x-3) (x+5) (x+4)
Explanation:
First we solve for x² + x-12
=> x² + 4x - 3x - 12
=> x ( x+4 ) - 3 (x+4 )
=> (x-3) (x+4)
Now we will solve for x² + 2x - 15
=> x² + 5x - 3x - 15
=> (x-3) (x+5)
we see here (x-3) is common in both the equations so We write it only 1 time as we have to find least common multiple .
Ans. Lest common multiples are = (x-3) (x+5) and (x+4)