Question

Evaluate the expression for the given value of the variable.3 × (h + 4) for h = 2 (c with a exponent 2)6 × (c2 - 5) for c = 49a - 2a for a = 9

Answer 1

We are given the following expression:

`3(h+4),\text{ h=}2`

To determine the value of the expression in the given value for the variable "h", we need to replace the numerical value of "h" in the expression, like this:

`3(2+4)`

Now we solve the operations, beginning with the operations inside the parenthesis:

`3(6)`

Solving the product:

`18`

Given the expression:

`6(c^2-5),\text{ }c=4`

We replace the given value for "c" in the expression, like this:

`6((4)^2-6)`

Now we solve the square:

`6(16-6)`

Now we solve the operation inside the parenthesis:

`6(10)`

Now we solve the product:

`60`

And thus we get the result.