Math, asked by Mohammedyousuf07, 9 months ago

Log(×+4)+log(×-4)=4log2+log15

Answers

Answered by 217him217
1

Answer:

log(x+4)+log(x-4) = log2^4 + log15

=> log[ (x+4)(x-4) ] = log( 16 *15)

=> (x+4)(x-4) = 16*15

=> x²-16=240

=> x² = 256

=> x = 16

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