3x^2+2root5x-5=0
Completing the square method
I am supposed to get answer as root 5/3

x = ±

Step-by-step explanation:

Given

3x² + 2 x - 5 = 0 ( add 5 to both sides )

3x² + 2 x = 5

Before completing the square we require the coefficient of the x² term to be 1

Factor out 3 from each term on the left side

3(x² + x ) = 5

To complete the square

add/ subtract ( half the coefficient of the x- term)² to x² + x

3(x² + 2( )x + - ) = 5

3(x + )² + ( 3 × - ) = 5

3(x + )² - = 5 ( add to both sides )

3(x + )² = ( divide both sides by 3 )

(x + )² = ( take the square root of both sides )

x + = ± = ± ( subtract from both sides )

x = - ±

Thus

x = - - = -

x = - + =

people went from manufacturing one object at a time by hand to manufacturing many objects in factories

answer: if you weigh 60 pounds on earth, on the moon you will weigh about 10 pounds. if you weigh 120 pounds on earth, you will weigh about 20 pounds on the moon. since weight is caused by the mass of two objects that are near each other, the bigger the objects, the more the force of gravity.

step-by-step explanation: if you weigh 60 pounds on earth, on the moon you will weigh about 10 pounds. if you weigh 120 pounds on earth, you will weigh about 20 pounds on the moon. since weight is caused by the mass of two objects that are near each other, the bigger the objects, the more the force of gravity.