a)
b)
c)
Daje najj
3y+2y²-6-4y-y²=y²+5
2y²-y²-y²+3y-4y-6-5=0
-y-11=0
y=-11
x²+4x+4=x²
x²-x²+4x+4=0
4x+4=0
4x=-4
x=-1
4-24x+9x²-(1+4x+4x²)-3x²=2x²
4-24x+9x²-1-4x-4x²-3x²-2x²=0
9x²-4x²-3x²-2x²-24x-4x+4-1=0
-28x+3=0
-28x=-3
x=3/28
... nie to zadanie..
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a)
3y+2y²-6-4y-y²=y²+5
2y²-y²-y²+3y-4y-6-5=0
-y-11=0
y=-11
b)
x²+4x+4=x²
x²-x²+4x+4=0
4x+4=0
4x=-4
x=-1
c)
4-24x+9x²-(1+4x+4x²)-3x²=2x²
4-24x+9x²-1-4x-4x²-3x²-2x²=0
9x²-4x²-3x²-2x²-24x-4x+4-1=0
-28x+3=0
-28x=-3
x=3/28
... nie to zadanie..