Question

1) The value of the expression x 3+3x 2-5
for x = (-2) will be...​

Answer 1

Answer:

23 or -1

Step-by-step explanation:

the question does not specifically mentions it, so i have to go with the two interpretations of the question

Interpretation 1:

(x)^3 + 3(x)2 - 5

= (-2)^3 + 3(-2)^2 - 5

= -8 + 12 - 5

= -1

Interpretation 2:

(x)^3 + (3x)^2 - 5

= (-2)^3 + (3*(-2))^2 - 5

= -8 + 36 -5

= 23

Answer 2

Step-by-step explanation:

3x + 3x(2-5)

3(-2) + 3(-2)(2-5)

-6 + 18

12