диагональ основания 6sqrt(2)
h^=100-18=72
h=6sqrt(2)
V=1/3(36*6sqrt(2))=72sqrt(2)
X-y=4,257*10⁷-1,8*10⁷=(4,257-1,8)*10⁷=2,457*10⁷
x+y=3,6*10⁵+2,364*10⁵=(3,6+2,364)*10⁵=5,964*10⁵
<span>x^2-12x+45=(x-15)(x+3)</span>
<span>x^2-12x+45-(x^2-12x-45)=0</span>
<span>x^2-12x+45-x^2+12x+45=0</span>
<span>-12x+45+12x+45=0</span>
<span>45+45=0</span>
<span>900
</span>