Answer:
the same way Pythagoras Theorem
and sorry for the hand writing
Answer:

Step-by-step explanation:


Use the formula of a² - b² = ( a + b ) ( a - b )

Hope I helped!
Best regards
It is not too difficult. Just do this
50-15
5(10-3)
The answer is 5(10-3)
Answer:
0.00360.
Step-by-step explanation:
Leading zeros in a number are not significant, so your number has four significant figures.
You must drop the 7 from 0.003597.
Since 7 is greater than 5, you must add 1 to the 9
