January 2019 1 13 Report
Równania kwadratowe +rysunki
1.
a) 49-x²=0
b)1,25x²-0,8=0
c)3x²-12=0
d)2 i 1/4- x²/9=0
e)2x²-24=0
f)-0,2x²=5
g)x²=x
h)3x+12x²=0
i)2,5x²-1/4x=0
j)√3x²-√18x=0
k)6x=√2x²
l)(2-√2)x²=1-√2
2.
a) -
b)(x-3)(x+2)=6
c)(√3x+1)(√3-x)=4x
d)(2-x√2)²=(√2-x)²
e)(2x+1)(2-3x)=0
f)(3-x)(2x+1)=6
g)√6x²+x-√6=0
h)x²-4√2x+6=0
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