Proszę o pilne rozwiązanie bez przykładu A
Z góry dzięki ;)))
b,
2⁵x+2⁷x+2⁶x=196·2
2⁵x(1+2²+2)=392
32x·7=392
224x=392
x=1,75
c.[(7/2)²:49]²x=[1-5·0,09·2]²
(49/4·1/49)²x=(1-0,9)²
1/16x=0,01
x=0,16
d.
(8/5)²-(8/5)²x=64/125x
64/25=64/125x+64/25x
64/25=64/125x+320/125x
384/125x=64/25
x=64/25·125/384
x=⅚
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b,
2⁵x+2⁷x+2⁶x=196·2
2⁵x(1+2²+2)=392
32x·7=392
224x=392
x=1,75
c.[(7/2)²:49]²x=[1-5·0,09·2]²
(49/4·1/49)²x=(1-0,9)²
1/16x=0,01
x=0,16
d.
(8/5)²-(8/5)²x=64/125x
64/25=64/125x+64/25x
64/25=64/125x+320/125x
384/125x=64/25
x=64/25·125/384
x=⅚