Question

4(a+b)^2+4a-3b
when a=2;b=-3

Answer 1

The answer when you evaluate the expression, is 21

Plug in the values,

4((2)+(-3))^2+4(2)-3(-3) = 21.

Answer 2

`\boxed{\boxed{\Large\text{$21$}}}\\`

Explanation:

To evaluate the expression:

`\boxed{\Large\text{$4(a+b)^2+4a-3b$}}`

We are given that a = 2, and b = -3. Therefore we can plug in these values:

`\Large\text{$\implies 4\big((2)+(-3)\big)^2+4(2)-3(-3)$}`

And now we can solve this:

`\Large\text{$\implies 4\big(-1\big)^2+8+9$}\\\\\Large\text{$\implies 4+8+9$}\\\\\boxed{\boxed{\Large\text{$\implies 21$}}}\\`