(X+4)(X-4) is the LCD because you just have to look at the denominators and see what factors or values are not already part of your LCD.
Answer:
I thin B -7 cause its negative and negative goes down.
Step-by-step explanation:
Answer:
The property that was used in step 1 was the distributive property.
The property that was used in step 2 was the subtraction property of equality.
The property that was used in step 3 was the division property of equality.
Step-by-step explanation:
The question can't be solved because we can't have negative sign under square root
