What is the solution set of the quadratic equation 3x^2 - 2x - 1 = x^2 - 6x +3

x = -1 ± √3

Step-by-step explanation:

3x² − 2x − 1 = x² − 6x + 3

Move everything to one side.

2x² + 4x − 4 = 0

Divide by 2.

x² + 2x − 2 = 0

Solve with quadratic formula, or by completing the square.

x² + 2x = 2

x² + 2x + 1 = 3

(x + 1)² = 3

x + 1 = ±√3

x = -1 ± √3

mr. flanders’ class sold 47 doughnuts and   mr. rodriquez’s class sold 38 cartons of milk

step-by-step explanation:

let x be the number of doughnuts sold by mr. flanders’ class and y be the number of cartons sold by mr. rodriquez’s class.

1. together, the classes sold 85 items, then

x+y=85.

2. both classes earn earned $104.49 for their school. if doughnuts were sold for $1.35 each, then x doughnuts costed $1.35x. if cartons of milk were sold for $1.08 each, then y cartons costed $1.08y. hence,

1.35x+1.08y=104.49.

3. solve the system of two equations:

b i think

step-by-step explanation:

not really sure