Factors of the given expression by splitting middle term of expression
will be
.
Given expression is

<h3>What is a factor?</h3>
A factor is a number that divides another number leaving no remainder
After we split 42x into 21x each,
The expression looks like,


Taking 3x+7 as common

So factors will be (3x+7) and (3x+7).
Therefore,
Factors of the given expression
will be
.
to get more about factors refer to:
brainly.com/question/25829061
Answer:
21.) 50°
22.) 135°
23.) 37°
24.) 100°
25.) 105°
26.) 60°
Step-by-step explanation:
Answer: 2
Step-by-step explanation: Fist solve the first problem. -3u-1=2. That simplifies to -3u=3. Now divide each side by -3. Now you should have u=-1. Now put it in the other problem. 2(-1)+4. 2*-1 is -2. So -2+4=2