Answer:

Step-by-step explanation:
Factor each half of the expression separately:

Since both 4k² and 7 are being multiplied by (7k-6), we can combine them to get:

Answer:
Step-by-step explanation:
The second one.
Answer:
x - 3 = 0
Step-by-step explanation:
You can realise it plotting the points.
Or you can use : ( x - x1 ) / ( y - y1 ) = ( x1 - x2 ) / ( y1 - y2 )
where ( x1 , y1 ) and ( x2 , y2 ) are the given points.
Answer:
Step-by-step explanation:
<u>Use cosine:</u>
- cos = adjacent / hypotenuse
- cos ∠L = KL/JL
- cos 21° = 4/x
- x = 4 / cos 21°
- x = 4.3 (rounded)
Answer:
4^4
Step-by-step explanation:
the answer is 4 to the power of 4