X+6=2 should we do x+6-6=2-6?

⇒ a + b + c = 9. - - - - - (1).

⇒ ab + bc + ca = 26. - - - - - (2).

As we know that,

Formula of :

⇒ (x + y + z)² = x² + y² + z² + 2xy + 2yz + 2zx.

Using this formula in this question, we get.

⇒ (a + b + c)² = a² + b² + c² + 2ab + 2bc + 2ca.

⇒ (a + b + c)² = a² + b² + c² + 2(ab + bc + ca).

Put the values in the equation, we get.

⇒ (9)² = a² + b² + c² + 2(26).

⇒ 81 = a² + b² + c² + 52.

⇒ a² + b² + c² = 81 - 52.

⇒ a² + b² + c² = 29. - - - - - (3).

As we know that,

Formula of :

⇒ x³ + y³ + z³ - 3xyz = (x + y + z)(x² + y² + z² - xy - yz - zx).

Using this formula in this question, we get.

⇒ a³ + b³ + c³ - 3abc = (a + b + c)[a² + b² + c² - ab - bc - ca].

⇒ a³ + b³ + c³ - 3abc = (a + b + c)[a² + b² + c² - (ab + bc + ca)].

Put the values in the equation, we get.

⇒ a³ + b³ + c³ - 3abc = (9)[29 - (26)].

⇒ a³ + b³ + c³ - 3abc = 9 x 3.

⇒ a³ + b³ + c³ - 3abc = 27.

Value of : a³ + b³ + c³ = 27 + 3abc.

Answer:

Answer: Bacterial fossils may be present in the form of petrified tissues. Explanation: The fossilization of bacteria is a very complex process.

Answer:

Bacterial fossils may be present in the form of petrified tissues.

Explanation: The fossilization of bacteria is a very complex process.

mark me brainlist

Explanation:

☞They form an interesting group of organisms that are adapted to tree-top living. Arboreal animals spend most of their time eating, sleeping, playing and raising their young in the trees.

Answer:

change in temperature due to pollution

Some changes causing around me are increase in ultra violet rays of the sun, increase in pollution, excessive cutting down of tress and increase in obesity among youngsters.

Explanation:

• Increase in ultra violet rays of the sun : Ultra violet radiation of the sun is increasing day by day due to the depletion in the ozone layer which is caused due to pollution . Ultra violet radiation can be dangerous as it causes several health disorders  such as skin cancer, cataracts and other eye disease, immune system weakening and many more .

• Increase in pollution : Modernisation has come with many ill effects one such being increase in pollution.Pollution can be of several types such as land, air, water, soil causing imbalance in the equillibrium. Pollution causes impurity in air which causes breathing disorders  and several other health hazards.

• Excessive cutting down of trees: Deforestation is a burning concern in the countrywide today. All forests have been cut down to extend urbanisation and cope up with the increasing population. All aminals are losing their home gradually and also the oxygen content in air is decreasing .

• Increase in obesity among youngsters : Obesity is nothing but the result of eating too much of junk food . Youngsters these days, are very indulged in having more of junk food and less of healthy diet . Due to which they are not getting enough of proper nutrition and hence causing obesity and a wide range of health disorders.