Divide both sides by -3, and replace
with
. Then

Factorize the quadratic in
to get

which in turn means

But
for all real
, so we can ignore the first solution. This leaves us with

If we allow for any complex solution, then we can continue with the solution we ignored:

Answer:
Step-by-step explanation:
it should be (3,4) if not im srry
#7. C #10. C #11. A #12. C
Answer: 12 kilograms= 12000 grams
Step-by-step explanation:
multiply the mass value by 1000