Originally Posted by

**youmuggles** When I do these questions, these are my answers... Could someone please tell me what i am doing wrong..?

__(x-2)(x-2)__

(x-2)(x+3)

__(x-2)__

(x+3)

__((2)-2)__

((2+3)

__0__

5

= 0

**correct**

__x__

x

= 0? DNE?

I still don't fully understand the concept with this one..

**if** $\displaystyle x \rightarrow 0^{+}$**, then** $\displaystyle |x|=x$

**if** $\displaystyle x \rightarrow 0^{-}$**, then** $\displaystyle |x|=-x$

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

(x-1)

**Wrong, This is the formula** $\displaystyle a^3-b^3=(a-b)(a^2+ab+b^2)$

**Try to do it again.**

x^2-2x+1

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

1-2+1

= 0

__(x+5)(x-1)__

(x-1)(x-1)

**No No No, Try to factor the denominator again.**

__(x+5)__

(x-1)

__((1)+5)__

((1)-1)

__6__

0

= DNE

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

**Same mistake, The formula is** $\displaystyle a^3-b^3=(a-b)(a^2+ab+b^2)$

**Try to do it again.**

12(x-2)

__(x^2+4x+4)__

12

((2)^2 + 4(2) + 4

12

__4+8+4__

12

=4/3