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Mathematics 8 Online
OpenStudy (anonymous):

3^/-343 There is no cubed root of a negative number. 7 18.5 −7

OpenStudy (welshfella):

try multiplying 7 , 18.5 and -7 by themselves 3 times

OpenStudy (welshfella):

7*7*7 = ?

OpenStudy (anonymous):

343

OpenStudy (anonymous):

but is it + , -

OpenStudy (welshfella):

that would be + 343

OpenStudy (welshfella):

this should tell you what the correct option is. remember the rules + * - = - and - * - = +

OpenStudy (welshfella):

-7 * -7 = ?

OpenStudy (anonymous):

49

OpenStudy (welshfella):

ok now multiply this by -7

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