rozwiąż równanie c)9x do kwadratu - 1 =0 d)36xdo kwadratu-1+0 e)4x do kwadratu-81=0 f)25x do kwadratu-36=0
9x2-1=0
9x2=1//9
x2=1/9
x=1/3
d) 36x2-1=0
36x2=1 podzielić 36
x2=1/36
x=1/6
e) 4x2-81=0
4x2=81/4
x2=20,25
x=4,5
f)25x2-36=0
25x2=36/25
x2=1,44
x=1,2
c)
9x²-1=0
x²=1/9
x=-1/3 ∨ x=1/3
d) 36x²-1=0
x²=1/38
x=-1/6 ∨ x=1/6
e)
4x²-81=0
(2x-9)(2x+9)=0
x=9/2 ∨ x=-9/2
f)
25x²-36=0
(5x-6)(5x+6)=0
x=6/5 ∨ x=-6/5
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9x2-1=0
9x2=1//9
x2=1/9
x=1/3
d) 36x2-1=0
36x2=1 podzielić 36
x2=1/36
x=1/6
e) 4x2-81=0
4x2=81/4
x2=20,25
x=4,5
f)25x2-36=0
25x2=36/25
x2=1,44
x=1,2
c)
9x²-1=0
x²=1/9
x=-1/3 ∨ x=1/3
d) 36x²-1=0
x²=1/38
x=-1/6 ∨ x=1/6
e)
4x²-81=0
(2x-9)(2x+9)=0
x=9/2 ∨ x=-9/2
f)
25x²-36=0
(5x-6)(5x+6)=0
x=6/5 ∨ x=-6/5