SOLUTION: Can someone please check my work? Thank you Question: Multiply x � 2 by -5x2 � 3x � 4 Answer: (x � 2)(-5x^2 � 3x � 4 ) = 5x^3 - 3x^2

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Question 601713: Can someone please check my work? Thank you
Question: Multiply
x � 2
by
-5x2 � 3x � 4
Answer:
(x � 2)(-5x^2 � 3x � 4 )
= 5x^3 - 3x^2 - 4x + 10x^2 + 6x + 8
= 5x^3 - 3x^2 + 10x^2 - 4x + 6x + 8
= 5x^3 + 8x^2 + 2x + 8
Question: Subtract.
(4n6 � 7n5 + 5) � (9n6 � n5 + 8)
Answer:
4n^6 - 7n^5 + 5 - 9n^6 + n^5 - 8
= (4 -9)n^6 + (7 - 1)n^5 - 3
=(-5) n^6 + (-6)n^5 - 3
= -5n^6 - 6n^5 -3

Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website!
Question: Multiply
x � 2
by
-5x2 � 3x � 4
Answer:
(x � 2)(-5x^2 � 3x � 4 )
= 5x^3 - 3x^2 - 4x + 10x^2 + 6x + 8
= 5x^3 - 3x^2 + 10x^2 - 4x + 6x + 8
= 5x^3 + 8x^2 + 2x + 8
--------
It's -5x^3, and
-3x^3+10x^3 = 7x^2
= -5x^3 + 7x^2 + 2x + 8
================================
Question: Subtract.
(4n6 � 7n5 + 5) � (9n6 � n5 + 8)
Answer:
4n^6 - 7n^5 + 5 - 9n^6 + n^5 - 8
= (4 -9)n^6 + (7 - 1)n^5 - 3
=(-5) n^6 + (-6)n^5 - 3
= -5n^6 - 6n^5 -3
Looks good.

SOLUTION: Can someone please check my work? Thank you Question: Multiply x � 2 by -5x2 � 3x � 4 Answer: (x � 2)(-5x^2 � 3x � 4 ) = 5x^3 - 3x^2 - 4x + 10x^2 + 6x + 8 = 5x^3 -