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ìYatoí
@ìYatoí
July 2022
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а) 5а+2/а² - 3а+2/а²
б) 6-х/2х² - 4-х/2х²
в) 4х-5/6х-3 + 7х-9/6х-3 - 9х-13/6х-3
г)3а-5b/a-b + 2a-4b/b-a
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Answers & Comments
екатерина1206
1) (5a+2) - (3a+2)/a²= 5a+2-3a-2/a²= 2a/a²= 2/a;
2)(6-x) -(4-x) /2x²= 6-x-4+x/2x²= 2/2x²=1/x²;
3)(4x-5)+(7x-9)-(9x-13)/6x-3= 4x-5+7x-9-9x+13/6x-3= 2x-1/6x-3= 2x-1/3(2x-1)= 1/3;
4)3a-5b/a-b - 2a-4b/a-b= (3a-5b)-(2a-4b)/a-b= 3a-5b-2a+4b/a-b= a-b/a-b=1
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Answers & Comments
2)(6-x) -(4-x) /2x²= 6-x-4+x/2x²= 2/2x²=1/x²;
3)(4x-5)+(7x-9)-(9x-13)/6x-3= 4x-5+7x-9-9x+13/6x-3= 2x-1/6x-3= 2x-1/3(2x-1)= 1/3;
4)3a-5b/a-b - 2a-4b/a-b= (3a-5b)-(2a-4b)/a-b= 3a-5b-2a+4b/a-b= a-b/a-b=1