# Math Help - Solve for A

1. ## Solve for A

A= [(6.5+6.5√3)(6.5√3)]/2

How would you solve this? I'm having trouble...could someone show the steps? I keep getting a different answer than what's in the book. Thanks.

2. ## Re: Solve for A

Originally Posted by eleventhhour
[(6.5+6.5√3)(6.5√3)]/2

How would you solve this? I'm having trouble...could someone show the steps? I keep getting a different answer than what's in the book. Thanks.
I think you mean simplify. There's nothing here to solve.

$\dfrac{(6.5+6.5\sqrt{3})(6.5\sqrt{3})} 2=$

$\dfrac{(6.5)^2\sqrt{3}+(6.5)^2(\sqrt{3})^2} 2$

you should be able to finish from here.

3. ## Re: Solve for A

No, I meant solve. Sorry about that! I just forgot to add the A=

4. ## Re: Solve for A

Originally Posted by eleventhhour
No, I meant solve. Sorry about that! I just forgot to add the A=
well there's really still nothing to solve. The side that isn't A is just a number.

5. ## Re: Solve for A

Originally Posted by eleventhhour
A= [(6.5+6.5√3)(6.5√3)]/2

How would you solve this? I'm having trouble...could someone show the steps? I keep getting a different answer than what's in the book. Thanks.
Romsek told you how to get the exact answer, which is not hard if you remember that $\sqrt{3}$ is just a number.

However if the problem asks you for an answer correct to 2 decimals or something like that, it is not asking for an exact answer at all; it is asking for an approximate answer. Are you allowed to use a calculator or a computer for arithmetic computations?