Polynomials - need answers check to make sure they are correct

Anonymous
timer Asked: Nov 6th, 2016

Question description

Simplify the expression

(m2 ­- 5)(2m2 + 3)



2m4 ­- 13m ­- 15


-11m4 - 15


2m4 - 7m2 ­- 15 answer


-5m4 - 15

============================================

Simplify the expression.

1 halfa3(4a - 6b + 8ab4 )


2a3 - 3a3b + 4a3b4

2a4 - 3a3b + 4a4b4 answer

8a4b4

8a4 - 12a3b + 16a4b4

=====================================

Simplify the expression.

(10x2 ­- 3xy + 4y2) ­- (3x2 + 5xy)


7x2 + 2xy + 4y2 answer

7x2 - 8xy + 4y2

7x2 - 8xy - 4y2

5x2y2

=====================================

Simplify the expression.

(4x2 ­- 3y2 + 5xy) ­- (8xy + 3y2)


12x2y + 5xy

-4x2y + 5xy

4x2 - 3xy answer

4x2 - 6y2 - 3xy

=================================

Simplify the expression.

(5y + 3y2) + (-8y - 6y2)


3y + 3y2

-3y - 3y2 answer

13y + 9y2

22y3

------------------------------------------

Simplify the expression.

(3x2 - x + 2) + (x2 +4x - 9)


4x2 + 3x - 7 answer

4x2 ­- 5x + 11

7x6 - 7

4x4 + 3x2 - 7

===============================

Find the degree of the polynomial expression shown below.

2a + 6b


6

2

1 answer

0

=============================

Find the degree of the polynomial expression shown below.

5x2y4 + x square root of 3


6 answer

5

4

2

===========================

Which of the following is a polynomial?

answer B

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