Posted by **corey** on Tuesday, April 22, 2008 at 9:40pm.

What if the last term has a square root that is a big, long decimal? you wouldn't use the decimal, would you?

- Algebra -
**Amber =]**, Tuesday, April 22, 2008 at 9:42pm
you would round it off to the hundreds place or put it as a fraction.. whatever your teacher wants you to do....but you do need the numbers after the decimal point

- Algebra -
**Kay**, Tuesday, April 22, 2008 at 10:05pm
You would usually simplify the square root as much as possible, say... 4 square root of 80. Nothing times it's self is 80, but it does have factors you can work with. 8 and 10 are easy... 8 has a factor of 4 and 2. 4 can be simplified down into 2 and 2. One of those goes away, and one goes to the outside. The ten can factor into 5 and 2. You have two two's and a five inside the square root. Another goes away and another goes to the outside. you are left with 2, 4, and 2 on the outside. You multiply them and have 16 square root of 5, because the five is still inside the square root...That was extremely long winded, but I hope it helps...

## Answer this Question

## Related Questions

- math - Use a calculator and systematic trial to approximate each square root to ...
- Pure Mathematics - Find the modulus and principal argument of the complex ...
- Algebra - Rationalize each expression by building perfect nth root factors for ...
- calculus - Determine an appropriate linear approximation of the function f(x)= ...
- algebra - use a calculator to approximate the square root of 320, round to three...
- algebra - 1. Use a calculator to approximate the square root of 320. Round to ...
- Algebra - Use the quadratic formula to solve the equation. Give exact answers: ...
- Math Help! - Four students worked to find an estimate for square root 22. Who is...
- Math117 - how to do negative decimal exponets 2^-0.4545 Remember that a negative...
- algebra - 1.)correct 2.)wrong---> the first term is wrong 4(3a^2)^2 = 36a^4 3...

More Related Questions