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.

Question

2 years ago

14

Write answer in x-y-z order and include the tenths place.

2 answers:

Naya [18.7K] · Answer 1 · 2022-04-15T14:33:19+03:00

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] · Answer 2 · 2022-04-15T16:24:33+03:00

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

$17.0x-8.2y+3.1z$