Question

Evaluate 5x³ + 2 for x = -1.
0 -3
04
06
0-7

Answer 1

-3

Explanation:

5x³ + 2 , when x = -1

5(-1)³ + 2

= -5 + 2

= -3

Answer 2

-3

(first option listed)

Explanation:

we know that 5x³ + 2 is our expression

we want to "evaluate" (find/solve for) when x = -1

we can do this by plugging in -1 to the expression:

5x³ + 2 {note, x = -1}

5(-1)³ + 2 {-1³ = -1}

5(-1) + 2

(-5) + 2

-5 + 2 = - 3

so, when x = -1, the statement is equivalent to -3

hope this helps! :)