just the numerator..
4a^2-8ab + 4b^2, right?
4(a-b)^2
Now does that reduce with the denominator?
Subtract and Simplify:
4a^2/(a-b)-(4b^2-8ab)/(b-a)
I have the answer as 4(a+b)^2/(a-b)
or should it be 4(a-b)^2/(a-b)
3 answers
Okay I have the answer as 4(a-b) is that right
What about
4a^2/(a-b)-(4b^2-8ab)/(b-a)
I thought that you would multiple the second part of the equation by -1
-(4b^2-8ab)/(b-a)
to get the common LCD of a-b
So I thought the equation would be 4a^2/(a-b) + (4b^2 + 8ab)/(a-b)
I have the answer as 4(a+b)^2/(a-b)
4a^2/(a-b)-(4b^2-8ab)/(b-a)
I thought that you would multiple the second part of the equation by -1
-(4b^2-8ab)/(b-a)
to get the common LCD of a-b
So I thought the equation would be 4a^2/(a-b) + (4b^2 + 8ab)/(a-b)
I have the answer as 4(a+b)^2/(a-b)
3 answers