Ответ:
№541
a)2x^2+x-6x-3=0 б)3х^2-3x-5x+5=0 в)5x^2+5x+4x+4=0
(2x+1)(x-3)=0 (x-1)(3x-5)=0 (x+1)(5x+4)=0
2x+1=0 x-3+0 x-1=0 3x-5=0 x+1=0 5x+4=0
x= x=3 x=1 x= x=-1 x
г)(6y-1)^2=0
6y-1=0
6y=1
y=
№542
а)5x^2-9x-2=0 б)-x^2-5x+14=0 в)6x+9-x^2=0
(5x+1)(x-2)=0 x^2+5x-14=0 x^2-6x-9=0
5x+1=0 x-2=0 x^2+7x-2x-14
x= x=2 (x+7)(x-2)=0
x+7=0 x-2=0
x=-7 x=2
г)-3=z^2-25
-z^2=-25+3
z^2=22
z=
№543
а)25-26x+x^2=0 б)3x^2-10+29x=0 в)y^2-4y-96=0
x^2-26x+25=0 3^2+29x-10=0 y^2+8y-12y-96=0
x^2-x-25x+25=0 3x^2+30x-x-10=0 (y+8)(y-12)=0
(x-1)(x-25)=0 (x+10)(3x-1)=0 y+8=0 y-12=0
x-1=0 x-25=0 x+10=0 3x-1=0 y=-8 y=12
x=1 x=25 x=-10 x=
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Answers & Comments
Ответ:
№541
a)2x^2+x-6x-3=0 б)3х^2-3x-5x+5=0 в)5x^2+5x+4x+4=0
(2x+1)(x-3)=0 (x-1)(3x-5)=0 (x+1)(5x+4)=0
2x+1=0 x-3+0 x-1=0 3x-5=0 x+1=0 5x+4=0
x=
x=3 x=1 x=
x=-1 x
г)(6y-1)^2=0
6y-1=0
6y=1
y=
№542
а)5x^2-9x-2=0 б)-x^2-5x+14=0 в)6x+9-x^2=0
(5x+1)(x-2)=0 x^2+5x-14=0 x^2-6x-9=0
5x+1=0 x-2=0 x^2+7x-2x-14
x=
x=2 (x+7)(x-2)=0 
x+7=0 x-2=0

x=-7 x=2

г)-3=z^2-25
-z^2=-25+3
z^2=22
z=
z=
z=
№543
а)25-26x+x^2=0 б)3x^2-10+29x=0 в)y^2-4y-96=0
x^2-26x+25=0 3^2+29x-10=0 y^2+8y-12y-96=0
x^2-x-25x+25=0 3x^2+30x-x-10=0 (y+8)(y-12)=0
(x-1)(x-25)=0 (x+10)(3x-1)=0 y+8=0 y-12=0
x-1=0 x-25=0 x+10=0 3x-1=0 y=-8 y=12
x=1 x=25 x=-10 x=