Решите уравнения срочно.
3-0,4x^2=0
1/4x^2-1/2x=0
(3x+2)^2=4+12x
x^2-(2x-3)(1-x)=3
3-0,4x^2=0
1/4x^2-1/2x=0
(3x+2)^2=4+12x
x^2-(2x-3)(1-x)=3
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Answers & Comments
3=0,4х²
7,5=х²
х=√7,5
0,25х²-0,5х=0
х(0,25х-0,5)=0
х=0 0,25х=0,5
х=2
9х² +12х+4=4+12х
9х²+12х-12х=4-4
9х²=0
х=0
х² -2х+2х²+3-3х=3
3х²-5х=3-3
3х²-5х=0
х(3х-5)=0
х=0 3х=5
х=5/3