1)170,508,604.2)435,609,1220.3)6,3,4,1.4)4м 1дм,7м 6дм,5м,6м 8дм.
27=3*3*3
45=5*3*3
НОД(45 и 27)=3*3=9
15=5*3
18=3*3*2
НОК(18 и 15)=3*3*2*5=90
1.(x-6)²=(x-3)²
x²-12x+36=x²-6x+9
x²-12x+36-<span>x</span>²<span>+6x-9=0
-6x+27=0
-6x= -27
x=4.5
2. </span><span>-2x</span>²<span> - 2x + 5= -x</span>²<span> - x - (1+x</span>²<span>)
</span><span>-2x</span>²<span> - 2x + 5+x</span>²<span>+x+1+x</span>²<span>=0
</span>-x+6=0
x=6