PLZ HELP.

What number should be added to both sides of the equarion to complete the square?

x² - 6x=5

x² - 6x=5

What to do:

Subtract 5 from both sides of the equation. x2−6x=−5

To create a trinomial square on the left side of the equation, find a value that is equal to the square of half of b. (b2)2=(−3)2

Add the term to each side of the equation. x2−6x+(−3)2=−5+(−3)2

Simplify the equation:

Raise −3 to the power of 2.x2−6x+9=−5+(-3)2

Simplify −5+(-3)2.

x2−6x+9=4

Factor the perfect trinomial square into (x−3)2.(x−3)2=4

Solve the equation for x:

(x-3)2=4

Solve the equation for x:

Take the square root of each side of the equation to set up the solution for

x. (x−3)2⋅12=±√4

Remove the perfect root factor x−3 under the radical to solve for x:

x−3=±√4

Simplify the right side of the equation:

x−3=±2

The complete solution is the result of both the positive and negative portions of the solution.

x=5,1

Explanation:

the correct answer is a) egypt and china.

egypt and china are two of the world’s oldest civilizations known by man. both ancient empires have left a great historic and cultural legacy to the world through archeology. both civilzations developed complex social relations, had deep religious beliefs, had dominion of agriculture and left writing records to understand their customs and culture.

among the requirements to consider a civilization, we find urbanization, writing records, a place of residence, agriculture methods, technological specialization, means of transportation, currency, population density, social stratification, and political integration.