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August 2022
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Помогите по алгебре 8 класс срочно!!!
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loshecka
1) x^2 - 0,49 = 0
X^2 = 0,49
X = 0,7
3) -7x^2 + 2,8x = 0
-x(7x - 2,8) = 0
-x = 0 7x - 2,8 = 0
X = 0 7x = 2,8
X = 0,4
5) -0,6x^2 - 9,6x = 0
-x (0,6x + 9,6) = 0
-x = 0 0,6x + 9,6 = 0
X = 0 0,6 x = -9,6
X = -16
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Answers & Comments
X^2 = 0,49
X = 0,7
3) -7x^2 + 2,8x = 0
-x(7x - 2,8) = 0
-x = 0 7x - 2,8 = 0
X = 0 7x = 2,8
X = 0,4
5) -0,6x^2 - 9,6x = 0
-x (0,6x + 9,6) = 0
-x = 0 0,6x + 9,6 = 0
X = 0 0,6 x = -9,6
X = -16