## lokiando one year ago What is f(–3) for the function f(a) = –2a^2 – 5a + 4?

1. Nnesha

f(-3) meaning a= -3 so substitute a for -3

2. lokiando

9

3. Nnesha

i didn't get 9..

4. Nnesha

$\huge\rm -2\color{ReD}{a^2} -5\color{Red}{a} +4$replace all a by -3 and remember square of negative number = positive number

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