Last updated on Sep 21, 2026

Indices (Junior Cert Mathematics): Flashcards

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Solving Equations with Indices

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What are indices (exponents)?

The index tells how many times to multiply a number by itself

In $2^3$ , what is the base?

$2$

In $2^3$ , what is the index?

$3$

$a^p \times a^q =$

$a^{p+q}$

$\frac{a^p}{a^q} =$

$a^{p-q}$

$(a^p)^q =$

$a^{pq}$

$a^0 =$

$1$

$a^{-p} =$

$\frac{1}{a^p}$

If $a^x = a^y$ , then what can we conclude?

$x = y$

Express $16$ as a power of $2$

$2^4$

Express $27$ as a power of $3$

$3^3$

Express $8$ as a power of $2$

$2^3$

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