Pertanyaan

Bentuk sederhana dari 9 y − 9 y + 1 9 x + 1 − 9 x adalah….

Bentuk sederhana dari $\frac{9 ^{x + 1} - 9 ^{x}}{9 ^{y} - 9 ^{y + 1}}$ adalah….

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Jawaban terverifikasi

Pembahasan

$fraction numerator 9 to the power of straight x plus 1 end exponent minus 9 to the power of straight x over denominator 9 to the power of straight y minus 9 to the power of straight y plus 1 end exponent end fraction equals fraction numerator 9 times 9 to the power of straight x minus 9 to the power of straight x over denominator 9 to the power of straight y minus 9 times 9 to the power of straight y end fraction equals fraction numerator 8 times 9 to the power of straight x over denominator negative 8 times 9 to the power of straight y end fraction equals negative 9 to the power of straight x over 9 to the power of straight y$