If y = 3ab + 2b3, what is y when a = 1 and b = 2

 The required value of y is 22.

Step-by-step explanation:  We are given the following function of a and b :

We are to find the value of y when a = 1 and b = 2.

To find the required value of y, we need to substitute the values of a and b in equation (i).

From (i), we get

Thus, the required value of y is 22.

step-by-step explanation:

given expression is .

now we need to simplify the given expression .

we know that square root is equivalent to the power 1/2. so that means we can take half of the exponents to get the square root of given expression.

expanding that will give a very very large number so let's keep answer in exponent form.