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Question
If x = 2, y = 5 and z = 4, find the value of the following:
`(5"x"^4"y"^2"z"^2)/(2"x"^2)`
Solution
`(5"x"^4"y"^2"z"^2)/(2"x"^2)`
= `(5"x"^(4-2)"y"^2"z"^2)/2`
= `(5"x"^2"y"^2"z"^2)/2`
= `(5(2)^2(5)^2(4)^2)/2`
= `(5xx4xx25xx16)/2`
= 5 × 2 × 25 × 16
= 4,000
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