Question

Jawaban dari log (2x-1)+log(x+3)=1+log 3

Answer 1

Log(2x-1) + log(x+3) = 1+log 3
log(2x-1) + log(x+3) = log10 + log3
log(2x-1)(x+3) = log(10*3)
(2x-1)(x+3) = 30
2x²+5x-3=30
2x²+5x-33=0
(2x+11)(x-3)=0
x=(-11)/2 dan x=3

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