Evaluate f(x)=2x2+3x−5

for f(−3)
.(1 point)
f(−3)= (__)

1 answer

To evaluate \( f(-3) \) for the function \( f(x) = 2x^2 + 3x - 5 \), we will substitute \( -3 \) into the function.

\[ f(-3) = 2(-3)^2 + 3(-3) - 5 \]

Calculating \( (-3)^2 \):

\[ (-3)^2 = 9 \]

Now substituting this value into the equation:

\[ f(-3) = 2(9) + 3(-3) - 5 \]

This simplifies to:

\[ f(-3) = 18 - 9 - 5 \]

Now combining the numbers:

\[ f(-3) = 18 - 9 = 9 \] \[ f(-3) = 9 - 5 = 4 \]

Thus,

\[ f(-3) = 4 \]

So the final answer is:

\[ f(-3) = \boxed{4} \]