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keramamarazzinsk
@keramamarazzinsk
August 2022
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Trekk
1) дробь не имеет смысла, когда знаменатель равен 0.
(5d+6)(5d-6)=0
25d^2-36=0
25d^2=36
d^2= 36/25
d=+- 6/5
Ответ: d1= -1,2; d2= 1,2
2)
(9+1)^2/2*(-1)
10^2/2*(-1)
-100/2
Ответ: -50
3)
9-8/9 = 1/9
4) ?
5) x^2 -20x+100=0
(X-10)^2=0
X-10=0
X=10
1 votes
Thanks 1
keramamarazzinsk
Благодарю!!! <3
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Answers & Comments
(5d+6)(5d-6)=0
25d^2-36=0
25d^2=36
d^2= 36/25
d=+- 6/5
Ответ: d1= -1,2; d2= 1,2
2)
(9+1)^2/2*(-1)
10^2/2*(-1)
-100/2
Ответ: -50
3)
9-8/9 = 1/9
4) ?
5) x^2 -20x+100=0
(X-10)^2=0
X-10=0
X=10