Register
What is the correct answer for both ? ​
65.9k views
4 votes
What is the correct answer for both ? ​

What is the correct answer for both ? ​-example-1
User Niels Henkens
by
4.7k points

2 Answers

6 votes
Answer of 19 is A by using the a^2 - b^2 = ( a - b) ( a + b) so this will be (r-1 )( r+1) because we have r^2 so we have to factorize it


Answer of 20 is B by following the same steps
User Houcem Berrayana
by
5.7k points
5 votes

Answer:

19. Option A

20. Option B

Explanation:

User Adolfojp
by
5.8k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

5.6m questions

7.3m answers

Other Questions

What is the value of x? (-4) - x = 5
Can someone help me with 5??? ASAP?
1/7 + 3/14 equivalent fractions
185g in the ratio 2:3
The function h = -t2 + 95 models the path of a ball thrown by a boy where h represents height, in feet, and t represents the time, in seconds, that the ball is in the air. Assuming the boy lives at sea
Link Copied!