Can someone help me I’m giving the brainliest please this is my final grade my parents are going to kill me if I do bad on this

Find the least common multiple of the expressions: 1. 3x^2, 6x - 18 2. 5x, 5x(x +2) 3. x^2 - 9, x + 3 4. x^2 - 3x - 10, x + 2 explain if possible

Find the value of x. give reasons to justify your solutions! l, m ∈ kn

Non-euclidean geometry was discovered when, in seeking cleaner alternatives to the fifth postulate, it was found that the negation could also be true a. true b.false