Answer:
No, It is not a right triangle
Step-by-step explanation:
For it to be a right triangle, the hypotenuse would be equal to the sum of the legs when squared.
Use the pythagorean theorem-
8^2+12^2=15^2
64+144=225
208=225
Since they aren't equal, it is not a right triangle.
Answer:
4-3i is the answer.......
Explanation
<u>Product</u>
(2-i)(1+2i) = 2+4i-i-2i²
= 2+4i-i+2
= 4+3i
conjugate of 4+3i is 4-3i
Answer:
(x + 8) (x - 8)
Step-by-step explanation:
To factorise the expression follow the steps:
Think the factorising means you want like:-
( x + _ ) ( x + _ )
Now, add the numbers to get 0 & multiple together to get -64
-64 = 8 x -8
8 + -8 = 0
Now fill the numbers in the factorising mean which will give you,
( x + _ ) ( x + _ ) --> ( x + <u>8</u> ) ( x - <u>8</u> )
Therefore, the answer will be: ( x + <u>8</u> ) ( x - <u>8</u> )
I hope this will help you :)
