Step-by-step explanation:
(x+4)²=9
x+4=±3
x=-1,-7
Answer:
To multiply by a power of 10, simply move the decimal to the right the same number of places as the exponent or as the number of zeros.
Step-by-step explanation:
Example: To divide by a power of 10, simply move the decimal to the left the same number of places as the exponent or as the number of zeros.
872 times 3=2616, just try to use a Calculator if you can
