Answer:
(2k+1)(k+3)
Step-by-step explanation:
14k²+49k+21
simplify by dividing the whole equation by 7
2k²+7k+3
factorise
(2k+1)(k+3)
Answer:
something perpendicular probably
The answer is: x = 2 ∨ x = -1
Answer:
5. DE
6. 6cm
7.20 in
8. DCF
Step-by-step explanation: