contestada

What are the two equations to set up to solve the equation |2x−4|=10 ?

2x+4=−10 and 2x−4=10 A

2x−4=10 and 2x−4=−10 B

2x+4=10 and 2x+4=−10 C

−2x+4=10 and 2x+4=10 D

Respuesta :

Answer:

B

Step-by-step explanation:

The absolute value function always gives a positive result

However, the expression inside can be positive or negative

| 2x - 4 | = 10

2x - 4 = 10 ← positive expression

2x - 4 = - 10 ← negative expression

Solving both gives

2x - 4 = 10 ( add 4 to both sides )

2x = 14 ( divide both sides by 2 )

x = 7

and

2x - 4 = - 10 ( add 4 to both sides )

2x = - 6 ( divide both sides by 2 )

x = - 3

queentiera12

Answer:

I just finished the Quiz and the Correct answer is B (2x−4=10 and 2x−4=−10)

Step-by-step explanation:

Otras preguntas