Answer:
Step-by-step explanation:
To factor this, you must first take out the GCF (Greatest Common Factor), that 
and -147 both have. The terms only have 3 in common, which can be divided with
However, we're still not done since 49 is a perfect square and 
can be split into 2, like so:
If you're unsure about the final answer, you can multiply it all together to see if you got the original expression.
X1 = 1
x2 = 3
Hopefully this helped!
Answer:
it would be by 23. that's what I think
Answer:
y=5x-3
Step-by-step explanation:
Neutral atoms must have equal numbers of protons and electrons
Solution: 18 electrons
