F(x) = 3x² - x³ + 2
f(0) = 3*0 - 0 +2 = 2
f(-3) = 3*9 - (-3)³ + 2 = 27 - 27 +2 = 2
f(5) = 3*5² - 5³ + 2 = 75 - 125 + 2 = - 48
x = 7 (7 + 2/7 = 7 2/7)
y = 9 (9 - 1/9 = 8 8/9)
x = 6 (6 - 6/7 = 5 1/7)
y = 10 (10 + 3/10 = 10 3/10
<span>1236-(х-994)=911
х-994=1236-911
х-994=325
х=325+994
х=1319
</span><span>(769-х)-567=156
769-х=567+156
769-х=723
х=769-723
х=46
</span><span>4х-2х+19+3х=79
4х-2х+3х=79-19
5х=60
х=60:5
х=12
</span><span>3*(х-9)+5*(х-4)=127
3х-27+5х-20=127
3х+5х=127+27+20
8х=174
х=174:8
х=21,75
</span>