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Sagot :
To simplify the expression [tex]\(\frac{6^{x+2}-6^x}{7 \times 6^x}\)[/tex]:
1. First, recognize that [tex]\(6^{x+2}\)[/tex] can be rewritten using the properties of exponents. Specifically, we can write [tex]\(6^{x+2}\)[/tex] as [tex]\(6^x \times 6^2\)[/tex]. Therefore:
[tex]\[ 6^{x+2} = 6^x \times 36 \][/tex]
2. Substitute this into the original expression:
[tex]\[ \frac{6^x \times 36 - 6^x}{7 \times 6^x} \][/tex]
3. Factor out [tex]\(6^x\)[/tex] from the numerator:
[tex]\[ \frac{6^x (36 - 1)}{7 \times 6^x} \][/tex]
4. Simplify the expression inside the parenthesis:
[tex]\[ 36 - 1 = 35 \][/tex]
So the expression becomes:
[tex]\[ \frac{6^x \times 35}{7 \times 6^x} \][/tex]
5. Since [tex]\(6^x\)[/tex] is in both the numerator and the denominator, it cancels out:
[tex]\[ \frac{35}{7} \][/tex]
6. Finally, simplify the fraction:
[tex]\[ \frac{35}{7} = 5 \][/tex]
Therefore, the simplified form of the given expression is:
[tex]\[ \boxed{5} \][/tex]
1. First, recognize that [tex]\(6^{x+2}\)[/tex] can be rewritten using the properties of exponents. Specifically, we can write [tex]\(6^{x+2}\)[/tex] as [tex]\(6^x \times 6^2\)[/tex]. Therefore:
[tex]\[ 6^{x+2} = 6^x \times 36 \][/tex]
2. Substitute this into the original expression:
[tex]\[ \frac{6^x \times 36 - 6^x}{7 \times 6^x} \][/tex]
3. Factor out [tex]\(6^x\)[/tex] from the numerator:
[tex]\[ \frac{6^x (36 - 1)}{7 \times 6^x} \][/tex]
4. Simplify the expression inside the parenthesis:
[tex]\[ 36 - 1 = 35 \][/tex]
So the expression becomes:
[tex]\[ \frac{6^x \times 35}{7 \times 6^x} \][/tex]
5. Since [tex]\(6^x\)[/tex] is in both the numerator and the denominator, it cancels out:
[tex]\[ \frac{35}{7} \][/tex]
6. Finally, simplify the fraction:
[tex]\[ \frac{35}{7} = 5 \][/tex]
Therefore, the simplified form of the given expression is:
[tex]\[ \boxed{5} \][/tex]
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