Factorise completely: 1. 3xy - x2. 4a² - 9
1 answer:
Answer:
x(3y - 1) and (2a - 3)(2a + 3)
Step-by-step explanation:
(1)
3xy - x ← factor out x from each term
= x(3y - 1)
(2)
4a² - 9 ← is a difference of squares and factors in general as
a² - b² = (a - b)(a + b) , then
4a² - 9
= (2a)² - 3²
= (2a - 3)(2a + 3)
You might be interested in
An.swer:
171.68
Step-by-step explanation:
I'm not sure about the answer, but this is how I would do it, since 15% and $150 are the same based on the question. do let me know if it's right! :)
Answer:
Maggie
Step-by-step explanation:
So trevor drove 50.5mph bc 202/4
Maggie 330/6 = 55mph
Nev 412/8=51.5mph
Juanita 261/5= 52.2mph
Answer:
the answer should be 158 but I'm not a hundred percent sure
Answer:
False.
Step-by-step explanation: