Posted by **John** on Saturday, March 15, 2008 at 9:58pm.

i need help solving this one (x + 4)^2/3= 9 a) 13 b) 23;-31 c) 5 d) 31;-31

also sove check for extraneous solutions

(6x-5)^1/2 = (7+ 4x)^1/2

a) 1/6 b) -9 c) 6 or d) 1/5

- alg -
**Reiny**, Saturday, March 15, 2008 at 10:51pm
(x + 4)^2/3= 9

[(x + 4)^2/3]^(3/2)= 9^(3/2)

x+4 = 27

x = 23

do the second one by squaring both sides

- alg -
**John**, Sunday, March 16, 2008 at 11:16am
ok so for this one i need help solving this one (x + 4)^2/3= 9 a) 13 b) 23;-31 c) 5 d) 31;-31

it would be c 23 or -31 right?

for for the 2nd one i got -9?

but i don't think i did it right

## Answer This Question

## Related Questions

- alg - i need help solving this one (x + 4)^2/3= 9 a) 13 b) 23;-31 c) 5 d) 31;-31...
- algebra - I need help with: solving and check for extraneous solutions. sqrt y+9...
- Alg 2 - Solve the equation. Check for extraneous solutions. ln x + ln(x-2) = 1
- Alg 2 - check for extraneous solutions. 0, 7^4 2^4, inside the equation x^5/6 = ...
- Alg 2 - Solve the equation. Check for extraneous solutions. 10 ln 100x - 3 = ...
- Math-Clarification - Identify any real and extraneous solutions for the ...
- algebra - what are extraneous solutions of an equation? Why do they sometimes ...
- trig - I need to find all solutions of the given equations for the indicated ...
- Precalculus - Solve (log x)^2 = log x Also, when will their be a possibility ...
- alg2 - solve for 10/x^2-2x + 4/x = 5/x-2 3x/x+1 + 6/2x = 7/x 8(x-1)/x^2-4 = 4/x-...

More Related Questions