8(х-2)(х²-1)=(4х²-2х+1)(2х+1)решите

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Алгебра: 8(х-2)(х²-1)=(4х²-2х+1)(2х+1)решите

Yulia542 · Answer

-1,25; 0,75Объяснение:8(x-2)(x²-1)=(4x²-2x+1)(2x+1)(8x-16)(x²-1)=8x³+4x²-4x²-2x+2x+18x³-8x-16x²+16=8x³+18x³-8x-16x²+16-8x³-1=0-16x²-8x+15=016x²+8x-15=0D = 64 + 960 = 1024x1 = -8-32/32 = -1,25x2 = -8+32/32 = 0,75...

8(х-2)(х²-1)=(4х²-2х+1)(2х+1)
решите

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