Answer:

Step-by-step explanation:
Given

![(x + 7) * (\ ) = [\ ]](https://tex.z-dn.net/?f=%28x%20%2B%207%29%20%2A%20%28%5C%20%29%20%3D%20%5B%5C%20%5D)
Required
Complete the blanks
We have:

Rewrite as:

Cross multiply

Answer:the diagonal lengths are equal
Step-by-step explanation:
The correct answer would be, 300,060,520
The mistake is there is no parenthesis around 4x+12
Answer:
Below in bold.
Step-by-step explanation:
Find the prime factors:-
126 = 2 * 3 * 3 * 7
234 = 2 * 3 * 3 * 13
So the GCF = 2 * 3 * 3 = 18.
The LCM = 2 * 3 * 3 * 7 * 13
= 1638.