Question

PLEASE HELP (100 Points!!!)

Answer 1

First picture the step E is incorrect because:

`(3)/((x+4)(x-4)) -(2x-8)/((x+4)(x-4))`

`=(-2x-5)/((x+4)(x-4))`

Instead you should change the step E to be:
`(-2x-5)/((x+4)(x-4))`

Second picture the step C is incorrect because:

`(√(5x))^(2)` =
`(x+2)^(2)`

`5x = x^(2) +4x+4`

`not`
`5x=x^(2) +4`

Instead you should change the step C to be:
`5x = x^(2) +4x+4`

Change step D to:

`5x -x^(2) -4x -4=0`

Change step E to:

`x^(2)-x+4=0`

Change step F to:

`x=(1+-√(1-16) )/(2)`

x∉R

HOPE IT'S HELP U

IF IT'S WRONG I'M SORRY:3

Answer 2

• 1. E)
• 2. C)

Explanation:

1.

Step E)

The mistake is:

• 2x - 5 on the numerator

Correct way is:

• 3 - (2x - 8) =
• 3 - 2x + 8 =
• 11 - 2x

2.

Step C)

The mistake is:

• 5x = x² + 4

Correct way is:

• 5x = (x+2)²
• 5x = x² + 4x + 4