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Kristinka55555
@Kristinka55555
December 2021
1
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Помогите.....:составьте разность многочленов и упростите:
1) 3а и 7+2а
2) 5в(в квадрате) - 9 и 4в(в квадрате) - в+5
3)4х+2 и х+1
4)2а-3в и - в-а
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sedinalana
Verified answer
1) 3а -( 7+2а)=3a-7-2a=a-7
2) 5в² - 9 -( 4в² - в+5)=5в²-9-4в²+в-5=в²+в-14
3)4х+2 -( х+1)=4x+2-x-1=3x+1
4)2а-3в -( - в-а )=2а-3в+в+а=3а-2в
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Answers & Comments
Verified answer
1) 3а -( 7+2а)=3a-7-2a=a-72) 5в² - 9 -( 4в² - в+5)=5в²-9-4в²+в-5=в²+в-14
3)4х+2 -( х+1)=4x+2-x-1=3x+1
4)2а-3в -( - в-а )=2а-3в+в+а=3а-2в