Friday

August 1, 2014

August 1, 2014

Posted by **tracy** on Monday, October 24, 2011 at 9:42pm.

the square root of 6m minus 5 = m

A. {1}

B. {5}

C. {1, 5}

D. no real solution

I think its B

- algebra,math -
**Reiny**, Monday, October 24, 2011 at 10:22pm√(6m) - 5 = m

√(6m) = m+5

square both sides

6m = m^2 + 10m + 25

m^2 + 4m + 25 = 0

m = (-4 ± √-84)/2

no real solution

if you think it is B), why not check it

LS = √30 - 5

RS = 5

mmmhhh

**However**, if you meant:

√(6m-5) = 5

then 6m-5 = 25

6m = 30

m = 5

See what happens if you don't use brackets to avoid ambiguity?

**Related Questions**

Algebra - I have some problems that I am having trouble with and I have some ...

math, correction plz - Can someone correct these for me.PLZ Problem#1 Directions...

Math - I am given 4 choices for the problem the square root of 8x -2 = the ...

algebra - 1.)correct 2.)wrong---> the first term is wrong 4(3a^2)^2 = 36a^4 3...

Algebra - I have a few questions that I need help with. Solve the radical ...

Inter. Algebra - Another problem plz help Count Iblis. How do you solve 5/x+2 + ...

Pre Algebra - Please help me with some problems. Thank you! Solve the equation ...

Algebra 2 - solve. If the equation has no real solutions, say so. Square root of...

algebra,math - Solve the equation. 4 times the square root of x minus 5 minus 8...

Algebra - Solve 2+ the square root of 4-x=x what is your question? ok lets start...