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Solve for the value of [tex]\( x \)[/tex] that satisfies the equation:

[tex]\[ 4(2.5)^{2x} = 4 \][/tex]

The value of [tex]\( x \)[/tex] is [tex]\( \boxed{\phantom{0}} \)[/tex]


Sagot :

To solve the equation [tex]\(4(2.5)^{2x} = 4\)[/tex], we will follow these steps:

1. Divide both sides of the equation by 4:
[tex]\[ \frac{4(2.5)^{2x}}{4} = \frac{4}{4} \][/tex]
Simplifying this, we get:
[tex]\[ (2.5)^{2x} = 1 \][/tex]

2. Take the logarithm of both sides. This will help us solve for [tex]\(x\)[/tex]:
[tex]\[ \log((2.5)^{2x}) = \log(1) \][/tex]

3. Use the properties of logarithms to simplify. Recall that [tex]\(\log(a^b) = b \log(a)\)[/tex]:
[tex]\[ 2x \log(2.5) = \log(1) \][/tex]

4. Remember that [tex]\(\log(1) = 0\)[/tex]:
[tex]\[ 2x \log(2.5) = 0 \][/tex]

5. Solve for [tex]\(x\)[/tex]. Divide both sides of the equation by [tex]\( \log(2.5) \)[/tex]:
[tex]\[ x = \frac{0}{2 \log(2.5)} \][/tex]
Since any number divided by a non-zero number is 0, we get:
[tex]\[ x = 0 \][/tex]

Thus, the value of [tex]\(x\)[/tex] that satisfies the equation [tex]\(4(2.5)^{2x} = 4\)[/tex] is:
[tex]\[ \boxed{0} \][/tex]