Find the value of 3x³+2x²-4 at x=2​

20

Concept:

Here, we need to understand the idea of evaluation.  

When encountering questions that gave you an expression with variables, then stated: "If x = a, y = b, z = c" (a, b, c are all constants), this means you should substitute the value given for each variable back to the expression.

Solve:

Given information

x = 2

Given expression

3x³ + 2x² - 4

Substitute values into the expression

3 (2)³ + 2 (2)² - 4

Simplify the exponenets

=3 (8) + 2 (4) - 4)

Simplify by multiplication

=24 + 8 - 4

Simplify by addition/subtraction

=32 - 4

=

Hope this helps!! :)

Please let me know if you have any questions

the median here is 25. your lowest value is 14 and highest value is 48. to find the third quartile, find the medium number in between 25 and 48 which would be 42 i believe.

cut 138 centimeters off

step-by-step explanation:

250-112 = 138