Thursday

February 26, 2015

February 26, 2015

Posted by **nadine** on Wednesday, October 8, 2008 at 12:03pm.

x^2-8x+16 would this be the right way

8x^3+16 to start

- Math -
**Reiny**, Wednesday, October 8, 2008 at 1:35pmOH NO, you cannot add unlike terms

x^2 - 8x + 16

=(x-4)(x-4)

check it by expanding

BTW, you did not have an "equation".

did you have x^2 - 8x + 16 = 0 ?

then (x-4)(x-4)=0

x = -4

- Math -
**Reiny**, Wednesday, October 8, 2008 at 2:12pmI obviously meant x = 4 (not -4)

(that "oldtimers" syndrome hitting again)

- Math -
- Math -
**drwls (quitting)**, Wednesday, October 8, 2008 at 1:36pmThe factors of x^2 - 8x + 16 are (x-4)(x-4)

You did not write an equation.

If you had written x^2 -8x + 16 = 0, which IS an equation, the answer would be x = 4. That would be the only answer, since both factors are zero when x = 4.

**Answer this Question**

**Related Questions**

Math help - How would you solve this factoring with two variables problem? -14x^...

MATH STUCK:-( - I am having some difficulties factoring polynomials and I use ...

Pre-Calc - I'm so stuck-this stuff is so far above me right now-Please help ...

gr 10 math - Solve by factoring. a) x^2 + 3x - 28 = 0 (x+7)(x-4) d)x^2 + 8x + 16...

Geometry - Solve each equation below by completing the square: 1) x^2 + 6x = 16 ...

Math - I haven't done factoring in ages I'm trying to factor this X^2 - 2X + 8 ...

Math - The average of X numbers is 15. If the sum of the X numbers is 90, what ...

Math help please - I'm so lost on this math Hw it's over factoring variables and...

Sally - I have a factoring question; what is 8a^2-8a-30? I've been working on ...

math-calculus - so with this one i do the same thing multiplying what inside ...