Rozwiąż nierówność: (x-1)2 (do potęgi) +7> (x+4)2 ( do potęgi)
(x-1)² + 7 > (x+4)²
x² - 2x + 1 + 7 > x² + 8x + 16
x²-x²-2x-8x > 16 - 1-7
-10x > 8 /:(-10)
x < - 4/5
x∈ (-∞ , -4/5)
(x-1)^2 + 7 > (x + 4)^2
x^2 - 2x + 1 + 7 > x^2 + 8x + 16
x^2 - x^2 - 2x - 8x > 16 - 7 - 1
x < - 8/10
x< - 4/5
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(x-1)² + 7 > (x+4)²
x² - 2x + 1 + 7 > x² + 8x + 16
x²-x²-2x-8x > 16 - 1-7
-10x > 8 /:(-10)
x < - 4/5
x∈ (-∞ , -4/5)
(x-1)^2 + 7 > (x + 4)^2
x^2 - 2x + 1 + 7 > x^2 + 8x + 16
x^2 - x^2 - 2x - 8x > 16 - 7 - 1
-10x > 8 /:(-10)
x < - 8/10
x< - 4/5