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mestny [16]
3 years ago
14

Subtract the polynomials (7.8x - 3.4y + z) and (-9.2x + 4.8y - 2.1z), then place the answer in the proper location on the grid.

Write answer in x-y-z order and include the tenths place.
Mathematics
2 answers:
Naya [18.7K]3 years ago
6 0
Subtracting the polynomials will give us:
(7.8x-3.4y+z)-(-9.2x+4.8y-2.1z)
=(7.8x+9.2x)+(-3.4y-4.8y)+(z+2.1z)
=17x-8.2y+3.1z

Answer: 17x-8.2y+3.1z
wolverine [178]3 years ago
3 0

Answer:

17.0x-8.2y+3.1z

Step-by-step explanation:

We are given that two polynomials

(7.8x-3.4y+z) and (-9.2x+4.8y-2.1z)[/tex]

We have to subtract the polynomials.

(7.8x-3.4y+z)-(-9.2x+4.8xy-2.1z)

Open the bracket

7.8x-3.4y+z+9.2x-4.8y+2.1z

Rearrange the terms

(7.8x+9.2x)-(3.4y+4.8y)+(z+2.1z)

Combine like terms

17.0x-8.2y+3.1z

Hence, the answer is given  by

17.0x-8.2y+3.1z

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