Friday

April 18, 2014

April 18, 2014

Posted by **B8** on Friday, September 27, 2013 at 10:09pm.

(2x+1)^2-2(2x^2-1) in simplest form

Is this correct?

[(2x+1)(2x+1)](-4x^2+2)

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

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

-16x^4-16x^3-4x^2

+ 8x^2+8x+2

_________________________

-16^4-16x^3+4x^2+8x +2

Did I do this correctly?

Thank you for your help.

- math -
**Reiny**, Friday, September 27, 2013 at 10:48pmthe way you typed it , I saw a subraction

(2x+1)^2 - 2(2x^2-1)

= 4x^2 + 4x + 1 - 4x^2 + 2

= 4x + 3

You did

((2x+1)^2 )(-2)(2x^2-1)

- math -
**B8**, Saturday, September 28, 2013 at 10:59amOk, I see my mistake. Thanks for explaining what I did incorrectly.

**Related Questions**

math,correction - Problem #1 subtract. Express your answer in simplest form (3x...

math - express in simplest form (2x+1)^2-2(2x^2-1) (2x+1)(2x+1)-2(2x^2-1) 4x^2+...

TO KIM - can you help me with this |2x - 3|^2 - 6|2x - 3| + 5=0 I know you are ...

algebra question - Find the sum and express in simplest form. (x^2)/(x^2-9)+(2x-...

alg - find the difference. express your answer in simplest form. x^2 + 3 / x - ...

math,correction - Geometry. Find the perimeter of the given figure. tHE Figure ...

Rational Expression - (x+1/2x-1 - x-1/2x+1) * (2x-1/x - 2x-1/x^2) (x+1/2x-1 - x-...

MATH - solve 1-(2/x)=2/(x+2) Express your answer in simplest radical form. What ...

Math - Prove each identity: a) 1-cos^2x=tan^2xcos^2x b) cos^2x + 2sin^2x-1 = sin...

Math - Write the equation in standard form using integers. Can someone please ...