Question

Solve b+4b^2-64a^3 when a= 1/4 and b= 0.2

Answer 1

-1.04.

Explanation:

We are asked to simplify the expression with given values.

For this problem, we should use substitution.

What is Substitution?

Substitution is replacing an unknown value with a known value.

For example, replacing the variable x with a known value such as 2.

Let's substitute the given values into our expression.

Substitute:

`-0.2+4(-0.2)^2-64(1/4)^3`

Evaluate:

`-0.2+4(0.04)-64(1/64)`

`-0.2+0.16-1`

`-1.04`

The solution is -1.04.