SOLUTION: HELP! I am showing you all of my work, if I am the one making a mistake, please point it out to me, or, this is a typo and needs to be addressed! I have been stumped all d

Question 94170: HELP! I am showing you all of my work,
if I am the one making a mistake,
please point it out to me,
or,
this is a typo and needs to be addressed!
I have been stumped all day with two questions:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Factor completely.
b�-ab-6a�
A) (b + 3a)(b � 2a)
B) (b + 6a)(b � a)
C) (b � 3a)(b + 2a)
D) (b � 6a)(b + a)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
(b�)-(ab)-(6a�)
Remove the parenthesis around the expression b�.
b�-(ab)-(6a�)
Multiply -1 by the ab inside the parenthesis.
b�-ab-(6a�)
Multiply -1 by the 6a� inside the parenthesis.
b�-ab-6a�
Reorder the polynomial b�-ab-6a�
alphabetically from left to right,
starting with the highest order term.
-6a� - ab + b�
Answer:
-6a� - ab + b�
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Factor.
50x3 � 90x2
A) 50x2(x � 90)
B) �10x2(�5x � 90)
C) �50x(x2 � 90x)
D) �10x2(�5x + 9)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
(90x�)-(50x�)
Remove the parenthesis around the expression 90x�.
90x�-(50x�)
Multiply -1 by the 50x� inside the parenthesis.
90x�-50x�
Reorder the polynomial 90x�-50x�
alphabetically from left to right,
starting with the highest order term.
-50x�+90x�
Factor out the GCF of -10x� from the expression -50x�
-10x�(5x)+90x�
Factor out the GCF of -10x� from the expression 90x�.
-10x�(5x)-10x�(-9)
Factor out the GCF of -10x� from -50x�+90x�.
-10x�(5x-9)
Answer:
-10�(5x-9)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Answer by checkley75(3666) (Show Source): You can put this solution on YOUR website!
B^2-AB-6A^2
(B-3A)(B+2A)=0
ANSWER IS C).
-------------------------------------------
50X^3-90X^2
10X^2(5X-9)
ANSWER IS D).
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