9x<span>²-6x+6x-4-32-9x+18=0
9x</span><span>²-9x-18=0 I :9
x</span><span>²-x-2=0
D=-1</span><span>²-4*-2=1+8=9
x1=1+3/2=2
x2=1-3/2=-1</span>
(0,24*10⁶)/(0,6*10⁴) = 0,24/0,6 * 10⁶/10⁴ = 0,4*10⁶⁻⁴ = 0,4*10² = 40
1)Q(x)=x^4-8x³+x²-3x+x³+5x²=x^4-7x³+6x²-3x
2)D(x)=x^4-8x³+x²-3x-x³-5x²=x^4-9x³-4x²-3x
3)R(x)=x³+5x²-x^4+8x³-x²+3x=-x^4+9x³+4x²+3x