How do you simplify $x^2-4x+3$ for x=5?

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Answer 1 · 2018-07-05T15:08:10

$8$

Given: $x^2-4x+3$ .

Plug in for $x=5$ .

$=5^2-4*5+3$

$=25-20+3$

$=5+3$

$=8$

Answer 2 · 2018-07-05T15:10:01

$8$

$"substitute x = 5 into the expression"$

$=(color(red)(5))^2-4(color(red)(5))+3$

$=25-20+3=8$

How do you simplify x^2-4x+3x^2-4x+3 for x=5?