Question

Решите уравнение:
a) 3x + 2x^3 + 5x^5 = 0
b) 6x + 7 — 2 = 3 — 5x
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7 14

Answer 1

$3x+2x^3+5x^5=0\\x(3+2x^2+5x^4)=0\\x=0\\3x+2x^2+5x^4=0-->$ x∉R

$x=0$

$6x+7-2=3-5x\\6x+5=3-5x\\6x+5x=3-5\\11x-2\;\;\;|:11\\x=-\frac{2}{10}$