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For the function [tex] p [/tex] defined by [tex] p(m) = 2m^2 - 4m + 3 [/tex], find [tex] p(|-3|) [/tex].

A. 3
B. 33
C. 51
D. 9


Sagot :

To find \( p(|-3|) \) for the given function \( p(m) = 2m^2 - 4m + 3 \), we will follow these steps:

1. Determine the absolute value: First, we need to find the value of \(|-3|\).
- The absolute value of \(-3\) is \( 3 \).

So, \(|-3| = 3\).

2. Substitute into the function: Next, substitute \( m = 3 \) into the function \( p(m) \).
- The function is given by \( p(m) = 2m^2 - 4m + 3 \).

Therefore, we need to evaluate \( p(3) \).

3. Calculate \( p(3) \):
- Substitute \( m = 3 \) into the function:
[tex]\[ p(3) = 2(3)^2 - 4(3) + 3 \][/tex]

4. Simplify the expression:
- First, calculate \( (3)^2 \):
[tex]\[ (3)^2 = 9 \][/tex]

- Next, multiply by 2:
[tex]\[ 2 \times 9 = 18 \][/tex]

- Calculate \( 4 \times 3 \):
[tex]\[ 4 \times 3 = 12 \][/tex]

- Now, plug these values back into the expression:
[tex]\[ p(3) = 18 - 12 + 3 \][/tex]

- Combine the terms:
[tex]\[ 18 - 12 = 6 \][/tex]

[tex]\[ 6 + 3 = 9 \][/tex]

Thus, the value of \( p(|-3|) \) is \( 9 \).

Therefore, the correct answer is [tex]\( \boxed{9} \)[/tex].