Question

Алгебра срочно решите хотя бы три

Answer 1

$1)\; \; (x+6)(x-9)(x-17)>0\\\\---(-6)+++(9)---(17)+++\\\\x\in (-6,9)\cup (17,+\infty )\\\\2)\; \; (x^2-4)(x+9)\geq 0\\\\(x-2)(x+2)(x+9)\geq 0\\\\---[-9\, ]+++[-2\, ]---[\, 2\, ]+++\\\\x\in [-9,2\, ]\cup [\, 2,+\infty )\\\\3)\; \; x(x+16)(x-3)\leq 0\\\\---[-16\, ]+++[\, 0\, ]---[\, 3\, ]+++\\\\x\in (-\infty ,-16\, ]\cup [\, 0,3\, ]$