A⁴-3a³+2a²+5a-9 = (a⁴-3a³)-(9-2a²-5a)
Решение
(3∧4)∧(1/4) - (1/2)∧(-3) = 3 - 2∧3 = 3 - 8 = -5
(3x+2)(3x-2)(9x²+4)=
=(9x²-4)(9x²+4)=
=81x^4-16
(6c²-2/7)(6c²+2/7)(36c^4+4/49)=
=(36c^4-4/49)(36c^4+4/49)=
=1296c^8-16/2401
3ˣ+3ˣ⁺¹=4
3ˣ+3*3ˣ=4
4*3ˣ=4
3ˣ=1
х=0
√(3х+1)=х-3 ОДЗ 3х+1>0 x>-1/3
возведем обе части в квадрат
3х+1=(х-3)²
3х+1=х²-6х+9
х²-9х+8=0
D=81-32=49 √D=7
х₁=(9+7)/2=8
х₂=(9-7)/2=1