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

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Answer 1 · 2017-01-08T10:19:53

$r^{4}$ $r^4$ .Its the only answer.

Answer 2 · 2017-06-13T09:20:08

$r \cdot r \cdot r \cdot r = r^{4}$ $r*r*r*r=r^4$

Answer 3 · 2017-07-16T18:51:57

$r \times r \times r \times r = r^{4}$ $rxxrxxrxxr = r^4$

The short way to write repeated addition is multiplication.

$4 + 4 + 4 + 4 + 4 = 5 \times 4 = 20$ $4+4+4+4+4 = 5xx4 = 20$

Multiplication is a stronger operation than addition.

In a similar way, the short way to write repeated multiplication is using indices or exponents.

$4 \times 4 \times 4 \times 4 \times 4 = 4^{5} = 1024$ $4xx4xx4xx4xx4 = 4^5 = 1024$

Note the difference between

$r + r + r + r = 4 \times r = 4 r$ $r+r+r+r = 4xxr = 4r$

And

$r \times r \times r \times r = r^{4}$ $rxxrxxrxxr = r^4$

Indices are stronger than multiplication, which is why in an expression with mixed operations, the order is:

powers and roots
multiply and divide
addition and subtraction

How do you write the expression r⋅r⋅r⋅rr*r*r*r using exponents?