How do you write the expression $7 \cdot 7$ $7*7$ using exponents?

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How do you write the expression $7 \cdot 7$ $7*7$ using exponents?

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Answer 1 · 2017-01-04T20:04:40

$7^{2}$ $7^2$

Explanation:

Using exponents is a ' shorthand' method for expressing $repeated multiplication .$ $color(blue)"repeated multiplication".$ That is the same value being multiplied by itself many times. The value of the exponent is the number of times the value is being multiplied by itself.

$\Rightarrow 7 \times 7 = 7^{2} since there are 2 sevens being multiplied$ $rArr7xx7=7^2" since there are 2 sevens being multiplied"$

$7 \times 7 \times 7 = 7^{3} since 3 sevens being multiplied$ $7xx7xx7=7^3" since 3 sevens being multiplied"$

$7^{4} represents 7 \times 7 \times 7 \times 7$ $7^4" represents " 7xx7xx7xx7$

$and so on$ $"and so on"$

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How do you write the expression $7 \cdot 7$ $7*7$ using exponents?

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