Question

Evaluate the expression for the given values of the variables.

4t + 2u^2 – u^3; t = 2 and u = 1

Answer 1

Substitute and solve
4t + 2u^2 – u^3
4(2) + 2(1)^2 – (1)^3

Answer 2

What do you get?

Answer 3

how exactly do you substitute ?

Answer 4

its because t=2 and u=1,
So in our equation,
4t + 2u^2 – u^3
we can replace the numbers with the alphabets,
4(2) + 2(1)^2 – (1)^3

Answer 5

i mean we can replace the alphabets with the numbers,

Answer 6

Then ?

Answer 7

4(2) + 2(1)^2 – (1)^3
8+2-1=?

Answer 8

so the answers 10 ?

Answer 9

8+2-1=?
eight plus two minus one equals?

Answer 10

9

Answer 11

yes