Автор - sodkfkfk

B) (3x - 2)2 = 8(x + 1)2 – 100;
r) (3x + 1)2 = 7(x - 1)2 + 19x -3​

Ответ

Автор - super2005

Ответ:

Объяснение:

b)(3x-2)2=8(x+1)2-100

6x-4=8x+8-100

6x-8x=8-100+4

-2x=-98

x=-98:-2

x=49

r)(3x+1)2=7(x-1)2+19x-3

6x+2=7x-7+19x-3

6x-7x-19x=-7-3-2

-20x=-12

x=12:20=0,6

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