Posted by **Carmin** on Thursday, June 4, 2009 at 8:20pm.

Please perform the indicated operations and simplify

(3x-5)^2-(2x+1)(x-4)

- Algebra -
**Reiny**, Thursday, June 4, 2009 at 8:27pm
(3x-5)^2-(2x+1)(x-4)

use FOIL to expand each one

= 9x^2 - 30x + 25 - (2x^2 - 8x + x - 4)

now simplify

- Algebra -
**Breanna**, Thursday, June 4, 2009 at 8:33pm
Yes but doesn't -8x and x combine to become -7x? so then it should look like this?

-2x^2 -7x -4?

- Algebra -
**Reiny**, Thursday, June 4, 2009 at 8:35pm
of course ...

that is what I meant by simplify.

I was expecting you to finish the question.

can you tell me what the next few lines would be ?

- Algebra -
**Breanna**, Thursday, June 4, 2009 at 8:37pm
9x2-30x+25

-2x2 -7x -4

--------------

7x2 -23+29

Is this correct?

- Algebra -
**Carmin**, Thursday, June 4, 2009 at 8:38pm
Thanks Breanna! Looks correct to me!

- Algebra -
**corinne**, Monday, February 11, 2013 at 8:13am
Perform the indicated operations and simplify (2x - 6) (x + 1) - (x - 7)^2

## Answer This Question

## Related Questions

- math- please help! - Please help with these 5 problems! I have the solutions but...
- college algebra - 1. divide and simplify x^2+x-56/x^1-1 / x-7/2x+2 2. find the ...
- algebra - Perform the indicated operations and simplify. y-4/y-9 - y+1/y+9 + y-...
- algebra - perform the indicated operations and simplify x-1/x-9-x+1/x+9+x-153/x^...
- Algebra 1 - PERFORM THE INDICATED OPERATIONS AND SIMPLIFY. x-8/x-9-x+1/x+9+x-27/...
- algebra - perform the indicated operations and if possibly simplify if a ...
- algebra - perform the indicated operations and,if possibly,simplify,if a ...
- Math - Perform the indicated operations and simplify: i^-31
- Math - perform the indicated operations and simplify x-5/x-7-x-1/x+7+x-35/x^2-49
- math 117 - perform the indicated operations and simplify z-4/z-6 - z+1/z+6 + z-...

More Related Questions