Question

Simply and find the value of
)
${z}^{2} - 2(z - 5) \: \: \: when \: z = 10$



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Answer 1

$\red{\boxed{\boxed{ 90 }}}$

Step-by-step explanation:

z = 10

$= {z}^{2} - 2(z - 5)$

$= {10}^{2} - 2(10 - 5)$

$= 100 - 2 \times 5$

$= 100 - 10$

$= 90$

${\purple{\boxed{ {\mathfrak{\underline{\purple{ @11177420 }}}} }}}$