(X-2y) (X+2y) Solve And Answer
(x-2y) (x+2y) solve and answer
ANSWER :
The answer is x^2 + 4y^2.
STEP BY STEP EXPLANATION :
(x - 2y) × (x + 2y)
= x^2 + 2xy -2xy + 4y^2
= x^2 + 4y^2
Therefore , the answer is x^2 + 4y^2.
Identify And Explain Some Of The Vital Considerations Needed To Know On The Different Methods To Mine A Mineral Deposit.
Identify and explain some of the vital considerations needed to know on the different methods to mine a mineral deposit. Mineral Resources: Mining Methods: Answer: Vital Considerations Needed to Know on the Different Methods to Mine a Mineral Deposit: Study geological formations and then test the physical and chemical properties of soil and rocks to locate possible ore deposits. Determine the size of the deposits and the concentration of mineral ores. Decide whether a mineral deposit is worth mining. Consider the type of mining to be done. Explanation: A deposit should only be mined if it would be profitable to do so. A concentration of minerals is called an ore deposit only if it is profitable to mine. Ore deposits that are close to the surface are mined by surface mining. In doing the surface mining, any overlying rock is blasted away. The rock that contains the valuable minerals is placed in a truck and taken to a refinery. Several methods of surface mining include op...
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