Thursday

December 25, 2014

December 25, 2014

Posted by **Ms.Ellis** on Thursday, July 21, 2011 at 8:49am.

(x-4x^3)^2

=(x-4x^3)(x-4x^3)=(x)(x)+(x)(-4x^3)+(-4x^3)(x)+(-4x^3)(4x^3)

= x^2-4x^4-4x^4-16x^6

=x^2-8x^4-16x^6

- Math -
**Reiny**, Thursday, July 21, 2011 at 9:43amYour answer is correct. You did nothing wrong.

- Math -
**Anonymous**, Thursday, July 21, 2011 at 10:08am-16x^2=>+16x^2

- check this again - Math -
**Reiny**, Thursday, July 21, 2011 at 10:35amshould have looked a bit more carefully

the last term should be + 16x^6

(in your second line: should have been

=(x-4x^3)(x-4x^3)=(x)(x)+(x)(-4x^3)+(-4x^3)(x)+(-4x^3)**(-4x^3)**

- Math -
**Ms.Ellis**, Thursday, July 21, 2011 at 2:27pmThanks Reiny, Thanks Anonymous I went over it and found the problem.

**Answer this Question**

**Related Questions**

Algebra - There are two solutions to | 16x - 5 | = 3. The greatest solution is ...

algebra - Solve the system by addition or substitution. 16x-4y=20 y=4x-4 I ask ...

Math - 5(-3x - 2) - (x - 3) = -4(4x + 5) + 13 Answer Multiply factors. -15x - 10...

math - The question is (2x+1)^2-2(2x^2-1) in simplest form Is this correct? [(2x...

algebra - x^2 +16x+64 x^2+16x=64 (x=3)^2=16x-64 16x=-64 x=-4 Check this problem ...

math, really need some feedback asap. - 5/8 x+1/16 x=11/16+x 16*(5/8 x+1/16 x...

Math - algebraish - hey how do we convert y=mx+b to standard form? the standard ...

Pre-Calculus - Help please If f(x)=8x and g(x)=2x+1 find (fog)(x) 16x^2+8x 16x+1...

calculus - i need to find the derivative using chain rule: (x^2 + 2x - 6)^2 (1-x...

Algerbra - how do you solve 7(3x+4)=8(2x+5)+13 expand the parenthesis...I will ...