SOLUTION: log 9 = log x^2
square root 9 = square root x^2
x = 3, x = -3
Question: x = 3 is an answer but on x = -3 is the -3 squared to = 9 or is just the 3 squared and the negative is p
Algebra.Com
Question 802881: log 9 = log x^2
square root 9 = square root x^2
x = 3, x = -3
Question: x = 3 is an answer but on x = -3 is the -3 squared to = 9 or is just the 3 squared and the negative is put put in front so the answer would be -9 and therefore I cannot put x = -3 as an answer. Are 3 and -3 the answer or just 3?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Squares are always positive because
(+)*(+) = +
(-)*(-) = +
So, both and
are valid answers
RELATED QUESTIONS
1)Solve for X
log(Square root of 5)(x) =6
-I am not sure how to put in a square root... (answered by josgarithmetic)
HELP =) !
resolving the Question 2570 (p200 - 250) : log of 9 to the base square root... (answered by rapaljer,venugopalramana)
log square... (answered by jsmallt9)
9/square root... (answered by stanbon)
Here are a few problems that I am not sure if I got them right. Thanks. Paul
1)... (answered by ankor@dixie-net.com)
Solve: log [base3] (x^3 +3) = log [base9] (x^2) + log [base√3] 2
*√;... (answered by richwmiller)
what is the answer to this equation? 3 log... (answered by jsmallt9)
What is the answer to this problem:
square root 20 x 3 square root 6 x square root... (answered by edjones)
log of 9 to the base square root of x - log of 3 to the base x = 9 + 6 log of x to the... (answered by kiru_khandelwal)