Question

CAN SOMEONE PLEASE CHECK MY ANSWERS! I WILL GIVE U AS MANY MEDALS AS I CAN AND FAN U!!!!!!

simplify the sum
1.(3x^4+2x^2+1)+(5x^4-9x-7)
A.8x^4+2x^2-9x-6
B.-2x^4+2x^2+9x+8
C.8x^4-7x^2-9x-6 **
D. 8x^4+2x^2-9x-6

2. find the GCF of the term of the polynomial
42x^5+60x^4
A.42x^4**
B.x^4
C.6x^6
D.6x^4

simplify the product using FOIL
(4x-3)(3x+5)
A.12x^2+11x-15
B.12x^2+11x+15
C.12x^2-29x-15
D.12x^2-29x+15**

what is the simpler form of the expression
(3h+2)(2h^2-7h+1)
A.6h^3-17h^2+11h+3
B.6h^3-25h^2-17h+2**
C.6h^3-17h^2-11h+2
D.6h^3-17h^2-11h+3

Answer 1

#1 is wrong
#2 is wrong
#3 is wrong
#4 is wrong

Answer 2

well can u help me?

Answer 3

1. 3x^4 + 2x^2 + 1 + 5x^4 - 9x - 7
combine like terms
3x^4 + 5x^4 = 8x^4
2x^2 -- no other like term
-9x -- no other like term
-7 + 1 = -6
put it all together and you get :
8x^4 + 2x^2 - 9x - 6

Answer 4

2. 42x^5 + 60x^4 =
6x^4 (7x + 10)
6x^4 is the greatest common denominator

Answer 5

3. (4x - 3)(3x + 5) ---- use FOIL
first -- multiply first terms in each set ... 4x * 3x = 12x^2
outside -- multiply outside terms in each set ... 4x * 5 = 20x
inside -- multiply inside terms in each set .. -3 * 3x = -9x
last -- multiply last terms in each set .. -3 * 5 = -15
put them all together..
12x^2 + 20x - 9x - 15 -- combine like terms
12x^2 + 11x - 15

Answer 6

what about 4? and can u help me with a few more if u don't mind. ill go to your page and give u a medal on everything! please?

Answer 7

#4 is 6x^3 - 17h^2 - 11h + 2

Answer 8

haha, I only knew the third one.

Answer 9

I am not real good with ones like #4....I had to look that one up

Answer 10

what is the factored form of the expression
y^2+9y+8
a.(y+8)(y+1)
B.(y-8)(y-1)
C. (y+8)(y-1)
D.(y-8)(y+1)**

Answer 11

a. (y + 8)(y + 1)

Answer 12

if you do FOIL on answer #a....then you will get y^2 + 9y + 8

Answer 13

what is the factored form of the following expression
x^2-4xy-21y^2
A.(x+3y)(x-7y)**
B.(x-3y)(x-7y)
C.(x+3y)(x+7y)
D)x-3y)(x+7y)

Answer 14

you got this one right :)

Answer 15

thank you soooo much!!! I would have failed without u!!!

Answer 16

the more problems you do like this, the better you will catch on. Be patient...keep practicing, and you will be the one helping people with this.

Answer 17

can you help me with one more? this one im pretty sure but idk
what is the degree of the monomial -2

Answer 18

sorry!

Answer 19

the degree of the monomial is the highest exponent, if there is only 1, or it is the total of all the exponents, if there is more then one.

Answer 20

its just -2

Answer 21

A monomial that is just a constant (a number with no variable) has a degree of 0

Answer 22

now if it is just a variable (a letter) then the degree is 1