Register
Simplify (√5+4)(√5-2) A)-3+2√5 B)3+2√5 C)-2+3√5
207k views
1 vote
Simplify (√5+4)(√5-2) A)-3+2√5 B)3+2√5 C)-2+3√5

User Susannah Potts
by
8.1k points

1 Answer

5 votes

Answer:

A

Explanation:


(x + y)(a - b) = xa - xb + ya - yb

(√5+4)(√5-2) =

=
( {√(5))}^(2) - 2 √(5) + 4 √(5) - 8

=
5+ 2 √(5) - 8

=
- 3+ 2 √(5)

Hope this helps ^-^

User Bgoodr
by
8.4k points
← Prev Question Next Question →

Related questions

User Robin Andersson
asked May 27, 2018 140k views
How do you simplify 2√5+3√5-√5
Robin Andersson asked May 27, 2018
by Robin Andersson
8.0k points
1 answer
0 votes
140k views
User Phil Young
asked Sep 21, 2020 158k views
Simplify 2√5 + 3√5 - √5
Phil Young asked Sep 21, 2020
by Phil Young
7.8k points
2 answers
3 votes
158k views
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.5m questions

12.2m answers

Other Questions

How do you can you solve this problem 37 + y = 87; y =
What is .725 as a fraction
i have a field 60m long and 110 wide going to be paved i ordered 660000000cm cubed of cement  how thick must the cement be to cover field
A dealer sells a certain type of chair and a table for $40. He also sells the same sort of table and a desk for $83 or a chair and a desk for $77. Find the price of a chair, table, and of a desk.
The cost of 5 similar digital cameras and 3 similar video cameras is 3213. Each video camera costs 4 times as much as each digital camera. John buys a digital camera and a video camera. How much does he
Link Copied!