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Mw3spartan17
28.01.2020 •
Mathematics
Choose the correct sum of the polynomials (6x3 − 8x − 5) + (3x3 + 6x + 2). 9x3 − 2x − 3 3x3 + 2x + 3 3x3 − 2x − 3 9x3 + 14x + 3
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Ответ:
Option A. ( 9x³ - 2x - 3 )
Step-by-step explanation:
Given polynomials are ( 6x³ - 8x - 5 ) and ( 3x³ + 6x + 2)
We have to find the sum of these polynomials
( 6x³ - 8x - 5 ) + ( 3x³ + 6x + 2)
We will collect the similar terms first.
6x³ - 8x - 5 + 3x³ + 6x = 2
= ( 6x³ + 3x³ ) + ( 6x - 8x ) + ( 2 - 5 )
= ( 9x³ - 2x - 3 )
Option A. ( 9x³ - 2x - 3 ) is the correct option.
Ответ:
The answer is 2(x+3)=3 * 2(x-1)-2x
2(x+3)=3 * 2(x-1)-2x
2(x+3)=6(x-1)-2x
2x+6=4x-6
2x+6-6=4x-6-6
2x=4x-12
-2x=-12
-2x/-2=-12/-2
x=6