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受欢迎的代数 >

(2^x-3)(2^x-4)=0

解答

(2^{x} - 3) (2^{x} - 4) = 0

解答

x = \frac{ln ( 3 )}{ln ( 2 )}, x = 2

+1

十进制

x = 1.58496 \dots, x = 2

求解步骤

(2^{x} - 3) (2^{x} - 4) = 0

使用零因数法则： If

ab = 0

then

a = 0

or

b = 0

2^{x} - 3 = 0 or 2^{x} - 4 = 0

解

2^{x} - 3 = 0 : x = \frac{ln ( 3 )}{ln ( 2 )}

解

2^{x} - 4 = 0 : x = 2

x = \frac{ln ( 3 )}{ln ( 2 )}, x = 2

作图

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