Question

Bagaimana cara penyelesaian dari persamaan
log2 (x+2) + (x+2)2 = log 0,1

Answer 1

Log2 (x+2) + (x+2)2 = log 1/10
log 2x + 4 + 2x + 4 = log1/10
log 2x+4 + log 2x+4 = log1/10
log 2(2x + 4) = log1/10
log 4x+8 = log 1/10
log 4x+8 - log 1/10 = 0
log 4x+8 / 1/10 = 0
log( 4x + 8)10 = 0
log 50x+80