If $y = 5 a n d z = 2$ , evaluate:

iii) $(5 z)^{3}$

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Solution

Step: Evaluate

Given : $(5 z)^{3}$

Substituting $z = 2$ in the given expression

$(5 z)^{3} = (5 \times 2)^{3}$

$= 10^{3}$
$= 1000$

Hence, the value of $(5 z)^{3}$ for $y = 5 a n d z = 2 i s 1000.$

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y = 5, z = 2

(5 z)^{3}

y = 5 a n d z = 2

5 y^{2}

q (z) = 5 z^{3} - 4 z + \sqrt{2}

z = 2 (\sqrt{2} = 1.41)

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