Maths problem

[jmzsl]

a^2 + a^x = a^10 unama x hoyanne kohomada? log danawa athi same base hinda. dan mathaka na bn

 

[Mr Tharindu]

a^2 + a^x =a^10

ekama padaye nisa

2+x =10
x=10/2

x=5

 

[jmzsl]

a^2 + a^x =a^10

ekama padaye nisa

2+x =10
x=10/2

x=5

 

[dehilu]

x=8

 

[jmzsl]

x=8

Ena hati poddak kyapan machan

 

[simpleboy]

a^2 + a^x =a^10

ekama padaye nisa

2+x =10
x=10/2

x=5

oya widihata ganna baneda ?

 

[Rajitha dilshan]

a^2 + a^x =a^10

ekama padaye nisa

2+x =10
x=10/2

x=5

 

[dehilu]

x+2=10
x=8

 

[CM_LK]

a^2 + a^x = a^10 unama x hoyanne kohomada? log danawa athi same base hinda. dan mathaka na bn

same base nisa,

2+x =10
x=10-2

x=8

 

[LazyLizard]

sorry, මේක වැරදි වගේ

 

[thilina91]

same base nisa,

2+x =10
x=10-2

x=8

2^2 + 2^1 = 2^3 ?

Log or derivatives walin nam puluwan.

 

[simpleboy]

onnam x eka paththakata dala anith okkoma eha paththata dala prakasanayak ganna puluwan ehema nathiwa anthimatama sulu karanna ba neda?

 

[dusty2]

a^2 + a^x = a^10

a^x = a^10 - a^2

a^x = a^2(a^8 - 1)

ln|a^2| = ln|a^2(a^8 - 1)|

xln|a| = ln|a^2(a^8 - 1)|

xln|a| = ln|a^2| + ln|(a^8 - 1)|

xln|a| = 2ln|a| + ln|(a^8 - 1)|

x = {2ln|a| + ln|(a^8 - 1)|}/ln|a|

 

[thilina91]

​

log (a^2 + a^x)

 

[HarshaX]

​

machan oma log ganna ba neda?
ln(a^2 + a^x)=ln(a^10)
then x=2ln(a^8-1)

 

[amilabanuka]

sorry, මේක වැරදි වගේ

log danna ona mulu ekatama. wena wenama danna ba

 

[LazyLizard]

log (a^2 + a^x)

machan oma log ganna ba neda?
ln(a^2 + a^x)=ln(a^10)
then x=2ln(a^8-1)

log danna ona mulu ekatama. wena wenama danna ba

ඇත්ත එහෙම කඩන්න බෑ තමා

 

[simpleboy]

X= log a^(a^10-a^2)

meka hari neda?methanin ehata thawa sulu karanna puluwanda?

 

[gayan_lakshitha]

a^2 + a^x = a^10 unama x hoyanne kohomada? log danawa athi same base hinda. dan mathaka na bn

Use log, I think this is correct

a^x = a ^10 - a ^2

a^x = a^2 ( a^8 - 1)

x log a = log a ^2 + log (a^8 - 1)

x log a = 2 log a + log (a^8 - 1)

x = 2 + [log (a^8 - 1)/log a]

 

[jmzsl]

prshane uththarayak ganna ba wage neda.
magen oya prashne office eke ekek ahuwa. u custom exam liyanawa eke model paper ekka tibba ekak. prashne waraddak wenna ati. anyway okkotoma rep++

okkotoma denna balu. heta dennam