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12 votes
12 votes
Solve this equation please​

Solve this equation please​-example-1
User Kamen Minkov
by
2.7k points

1 Answer

14 votes
14 votes

Explanation:

Number 1


log_(10)( {x}^(2) - 3x + 12 ) = 1 \\ log_(10)( {x}^(2) - 3x + 12 ) = log_(10)(10) \\ cancelling \: both \: logs \: we \: have \\ {x}^(2) - 3x + 12 = 10 \\ {x}^(2) - 3x + 12 - 10 = 0 \\ {x}^(2) - 3x + 2 = 0 \\


solve \: \: by \: factorisation \: method \\ {x}^(2) - 2x - x + 2 \\ {x}(x - 2) \: - 1(x - 2) \\ (x - 2)(x - 1) \\ therefore \: x = 2 \: or \: x = 1

Number 2

User Aayush Neupane
by
3.2k points
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