
Explanation

Step 1
multiplicate by the conjugate

notice that


I hope this helsp you
Answer:
20
Step-by-step explanation:
1440 will be your least common multiple
12x > 9(2x-3)-15
distribute the 9
12x > 18x-27 -15
combine like terms on the right side
12x > 18x-42
subtract 18x from both sides
-6x > -42
divide both sides by -6
x = -42 / -6 = 7
x >7
Answer: C
Step-by-step explanation:
A monomial is a expression where in it is x to the power of something, and x cannot be a denominator