(x + 4)^2
There's an algebra formula when it comes to equations like this:
(a+b)^2 = a^2 + 2ab + b^2
Let's use this equation to solve for (x+4)^2
(x+4)^2
= x^2 + 2(4)(x) + 4^2
Now, simplify
x^2 + 8x + 16
That's your answer for the first one.
For the second one, use the same formula.
(x-1)^2 = (x + (-1))^2
= x^2 + 2(-1)(x) + (-1)^2
Now, simplify
x^2 - 2x + 1
That's your answer for the second one
Thus, your two answers for the first and second equations are x^2 + 8x + 16 and x^2 -2x + 1, respectively.
Have an awesome day! :)
