Решите! a)2x(x+1)=x^2-1 B) b-6 и 2b(b-6) d) 4-(x-x/5)^2 =0

Question

Решите!
a)2x(x+1)=x^2-1
B) b-6 и 2b(b-6)
d) 4-(x-x/5)^2 =0

Answer 1

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