Help for solving equations with extraneous solutions

[Englishwiz]

Square root of 1-2x equals 6

 

[Deleted member 4993]

Square root of 1-2x equals 6

Please show us the steps that led you to believe that the equation above has an extraneous solution.

 

[pka]

Square root of 1-2x equals 6

Can you solve this simple equation: \(\displaystyle 1-2x=36~?\)

 

[Englishwiz]

Please show us the steps that led you to believe that the equation above has an extraneous solution.

Sorry. I don’t think I was clear. We need to find the solution of this equation and check for extraneous solutions.

 

[Aliabla]

Note pka has simplified your equation of √1-2x=6 .....which is like he stated [MATH]1-2x=36[/MATH] so solve for this and you'll get your answer.

 

[pka]

Note pka has simplified your equation of √1-2x=6 .....which is like he stated [MATH]1-2x=36[/MATH] so solve for this and you'll get your answer.

To Aliabla, Can you tell us why you do not believe in the discovery approach to learning mathematics? You need to read this.

 

[lookagain]

Note pka has simplified your equation of √1-2x=6 .....which is like he stated [MATH]1-2x=36[/MATH] . . .

Aliabla,

"√1-2x=6" is equivalent to "√(1) - 2x = 6."

The radicand needs to be in grouping symbols.