Równania Kwadratowe Niezupełne
a) 4x²-81=0
b)3-25x²=0
c)5x²-10x=0
d)¾x²-x=0
e)⅓p²=¼
f) √3x-⁵/₂x²=0
g) ½x²=-7
h) 3√2x² =5x
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a)
4x^2 - 81 = 0
(2x+9)(2x-9) = 0
2x = -9
x = -4,5
=======
lub
2x = 9
x = 4,5
=======
b)
3-25x^2 = 0
(V3+5x)(V3-5) = 0
5x = -V3
x = -V3/5
========
lub
5x = V3
x = V3/5
========
c)
5x^2 -10x = 0
5x(x-2) = 0
x = 0
=====
lub
x = 2
=====
d)
3/4x^2 -x = 0
x(3/4x-1) = 0
x = 0
=====
lub
3/4x = 1
x = 4/3
x = 1 1/3
=========
e)
1/3p^2 = 1/4
p^2 = 3/4
p = - V(3/4)
p = -V3/2
===========
lub
p = V(3/4)
p = V3/2
=========
f)
V3x -5/2x^2 = 0
x(V3 -5/2x) = 0
x = 0
=====
lub
5/2x = V3
x = 2V3/5
=========
g)
1/2x^2 = -7 I*2
x^2 = -14 - równanie sprzeczne ( x^2 >= 0 )
h)
3V2 x^2 = 5x
3V2 x^2 - 5x = 0
x(3V2x-5) = 0
x = 0
=====
lub
3V2x = 5
x = 5/3V2 * V2/V2 = 5V2/6
x = 5V2/6
=========
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