Sunday

February 1, 2015

February 1, 2015

Posted by **Skye** on Monday, June 2, 2014 at 7:41pm.

81x^4 - 81

possible choices are::

(9x^2 + 9)(9x^2 - 9)

OR

(9x^2 +9)(3x + 3)(3x - 3)

- math -
**Steve**, Monday, June 2, 2014 at 10:23pmNo reason to stop there. Factor out all those 3's:

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

If you must pick one of those choices, then use the last one, since it factors the 9x^2-9 as well. (factor completely!)

- math -
**seng**, Tuesday, June 10, 2014 at 10:51am0968763228

**Answer this Question**

**Related Questions**

factor completely - 125c^3 + 729x^3 (5c)^3 + (9x)^3 (5c + 9x)(25c^2 - 45cx + 81x...

MATH - A student is solving the equation 81x – 1 = 3x + 2. Step 1: 81x – 1 = 3x...

Algebra 2 - 1.) The cost in C dollars of manufacturing x bicycles at Holliday's ...

Math - Find the real-number solution of the equation. 3x^7 = 81x^4 I got this ...

math - factor the expression 81x^2-54xy+9y^2 into product of binominials

math - factor this polynomial function completely f(x)=12x^4+10x^3-214x^2+198x+...

math - I need help with these two problems please. Completely factor the ...

math help - Factor f(x) into linear factors given that k is a zero of f(x). f(x...

math please help!!!!! - Factor f(x) into linear factors given that k is a zero ...

algebra - factor y^2 + 18xy + 81x^2