Упростите выражение (3x+x^2)^2-x^2(x-5)(x+5)+2x(8-3x^2)

Question

Упростите выражение (3x+x^2)^2-x^2(x-5)(x+5)+2x(8-3x^2)

Answer 1

(3x+x²)²-x²(x-5)(x+5)+2x(8-3x²)=
=9x²+6x³+x⁴-x²(x²-25)+16x-6x³=
=x⁴+9x²+16x-x⁴+25x²=
=34x²+16x=
=2x(17x+8)

Comments

gdcb,^3

---

пасиб:3