The sum of two polynomials is –yz2 – 3z2 – 4y + 4. if one of the polynomials is y – 4yz2 – 3, what is the other polynomial?
–2yz2 – 4y + 7
–2yz2 – 3y + 1
–5yz2 + 3z2 – 3y + 1
3yz2 – 3z2 – 5y + 7

Option D. is the correct option.

Step-by-step explanation:

Sum of two polynomials is  - yz² - 3z²- 4y + 4. If one of the polynomials is y - 4yz² - 3, Then we have to find the other polynomial.

Let the other polynomial is A.

Therefore, A + (y - 4yz² - 3) = -yz² - 3z² -4y + 4

Now A = (-yz² - 3z²- 4y + 4) - (y - 4yz² - 3)

           = - yz²+ 4yz² - 3z²- 4y - y + 4 + 3

           = 3yz² - 3z²- 5y + 7

Our answer matches with option D.

he used the algebra tiles correctly.

step-by-step explanation:

given : 3x(2x-1)

solution :

since he used algebra tiles .

armando's solution is the same in the solution shown in figure

as he distributed 2x into x and x and wrote them vertically

and also write   -1 vertically

and 3x into x and x and x and wrote it horizontally

performing the multiplication in the algebra tiles we get

and solving the given expression :

3x(2x-1)

since solving the expression using tiles   and solving the expression algebraically we get the same answer

thus   we can choose the first statement as the answer to this problem which is "he used the algebra tiles correctly".

they go with it happens or they mite give a chance?

step-by-step explanation: