Math, asked by isak3, 4 months ago

please help I don't know how to solve

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Answered by gargpreeti8390

1

Step-by-step explanation:

1. (6x² +1x² +4x²)(-5x+1x-2x)(12+2+7)

1x² -6x +21

2. 4x +1x +3x -5y +1y -2y +3z +1z -5z

8x -6y -1z

3. 1x +1x +1x +1y -1y +1y +1z -1z -1z

3x +1y -1z

4 3a +1a +1a -4b -2b +1b +2c -2c +1c +8+7+3

5a -5b +1c +18

5 3x +2x +7x +4y +3y -2y +3z +4z -4z +2 +7-8

12x +5y +3z +1

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