Ответ:
3)6x+(2x-1)²=4(x+3)²=
6x+4x²-4x+1=4(x²+6x+9)=
6x+5²-4x+1=4x+24x+36=
6x-4x+1=24x+36=
2x+1=24x+36=
-22x=35=
x=-22/35
4)39x(4x+3)²=2+4(2x+1)²=
39x+16x²+24x+9=2+4(4x²+4x+1)=
39x+16x²+24x+9=2+16²+16+4=
39x+24x+9=2+16x+5=
63x+9=6+16x=
63x-16x=6-9=
47x=-3=
x=-47/3
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Ответ:
3)6x+(2x-1)²=4(x+3)²=
6x+4x²-4x+1=4(x²+6x+9)=
6x+5²-4x+1=4x+24x+36=
6x-4x+1=24x+36=
2x+1=24x+36=
-22x=35=
x=-22/35
4)39x(4x+3)²=2+4(2x+1)²=
39x+16x²+24x+9=2+4(4x²+4x+1)=
39x+16x²+24x+9=2+16²+16+4=
39x+24x+9=2+16x+5=
63x+9=6+16x=
63x-16x=6-9=
47x=-3=
x=-47/3