a. 
b. x = ∛-1 and -3
<h3>How to expand the expression</h3>
a. Given
(x² + 2)²
First, we open up the bracket

Multiply through

Collect like terms

b. Let's factorize

Find the factors of 3 that are products of 4, they are 3 and 1
Use it to replace 4x as 3x and x

Let's make the expression two

Find the common factor

So,
and 
and x = -3
Thus, x = ∛-1 and -3
Learn more about factorization here:
brainly.com/question/25829061
#SPJ1
We can use the tangent function to find the value of angle C.
tan ∠C = 29/38
tan ∠C = <span>0.76315789473
Now we will do inverse of tangent on both sides.
</span>∠C ≈ 37°
<span>
Hope this helps :)</span>
I’m not sure about the first 2
57,142 because it says standard