Evaluate the expression when c=4. c2 +5c-8

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NoobSkywalker asked Oct 27, 2022

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2 votes

Evaluate the expression when c=4.
c2 +5c-8

Mathematics
high-school

NoobSkywalker asked Oct 27, 2022

by NoobSkywalker

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14 votes

Answer:

if c=4

then c2+5c-8

4*3+5*4-8

12+20-8

32-8

24.

Ysakhno answered Oct 29, 2022

by Ysakhno

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18 votes

$Given\: equation\: ➠ \:{c}^(2)\:+\:5c\:-\:8$

$Value\: of\: c \:=\: 4$

Evaluating c = 4 in equation .

$⟶\:{c}^(2)\:+\:5c\:-\:8$

$⟶\:{4}^(2)\:+\:5(4)\:-\:8$

$⟶\:16\:+\:20\:-\:8$

$⟶\:36\:-\:8$

$⟶\:28$

Kevin Kuyl answered Nov 3, 2022

by Kevin Kuyl

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