Saturday

November 29, 2014

November 29, 2014

Posted by **Moe** on Thursday, January 28, 2010 at 9:24pm.

1. Solve for x without a calculator:

log3(x^2)=2log3(4)-4log3(5)

This is what I have so far:

2log3(x)=log3(4^2)-log3(5^4)

2log3(x)=log3(16/625)

...and now I'm stuck.

2. Simplify:

2log4(9)-2log3 <--how do you simplify with different bases?

Thanks!

- Math -
**Reiny**, Thursday, January 28, 2010 at 9:38pmfrom

2log3(x)=log3(16/625)

log3 (x^2) = log3 (16/625

so x^2 = 16/625

x = √(16/625) = 4/25

**Answer this Question**

**Related Questions**

Algebra - Solve the equation. 2log3 y = log3 4+ log3 (y+8) Here's what ive got ...

Trigonometry - log3(x^2)=2log3(4)-4log3(5)

Algebra 2 - Simplify: 1. 2log10^5+log10^4 2. 2log3^6-log3^4 3. log4^40-log4^5 4...

math - Find the value of each of the following. Leave your answers as fractions ...

Precalculus - Please help me with these questions ASAP!! Suppose that f(x)=log3...

Math - Solve the logarithmic equation. Express your solutions in exact form only...

ALGEBRA 1 - Lesson 3 Assignment .Explain the differences between solving these ...

Algebra 1 - Lesson 3 Assignment .Explain the differences between solving these ...

math - Solve for x in the following equations. (4 marks) log3(x - 5) + log3(x + ...

Alegbra (logs) - Please help, I need help on these two problems. Solve the ...