(x-2)(x+2)≦2(x²+4)-(x+5)(x+3)-17,明天要上交 十万火急TAT!

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(x-2)(x+2)≦2(x²+4)-(x+5)(x+3)-17,明天要上交 十万火急TAT!
(x-2)(x+2)≦2(x²+4)-(x+5)(x+3)-17,
明天要上交 十万火急TAT!

(x-2)(x+2)≦2(x²+4)-(x+5)(x+3)-17,明天要上交 十万火急TAT!
答:
(x-2)(x+2)<=2(x^2+4)-(x+5)(x+3)-17
x^2-4<=2x^2+8-x^2-8x-15-17
x^2-4<=x^2-8x-24
8x<=-20
x<=-5/2