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grin007 [14]
3 years ago
11

The sum of two polynomials is –yz2 – 3z2 – 4y + 4. If one of the polynomials is y – 4yz2 – 3, what is the other polynomial? –2yz

2 – 4y + 7–2yz2 – 3y + 1–5yz2 + 3z2 – 3y + 13yz2 – 3z2 – 5y + 7
Mathematics
2 answers:
lidiya [134]3 years ago
4 0

Answer:

D. 3yz2 – 3z2 – 5y + 7

Step-by-step explanation:

marishachu [46]3 years ago
3 0

The first polynomial is y -4yz^2-3 and let the second polynomial be P(y,z).

If the sum of two polynomials is -yz^2-3z^2-4y+4, then y-4yz^2-3+P(y,z)=-yz^2-3z^2-4y+4.

Take the first polynomial from the left side to the right side:

P(y,z)=-yz^2-3z^2-4y+4 -(y-4yz^2-3),\\ P(y,z)=-yz^2-3z^2-4y+4 -y+4yz^2+3,\\ P(y,z)=3yz^2-3z^2-5y+7.

Answer: the second polynomial is 3yz^2-3z^2-5y+7.

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