Question

factorise completely 4(2x+3y)-5(2x+3y)² please do fast...and please dont post unnecessary answers ​

Answer 1

Answer:

a gas that has no colour, taste or smell. Nitrogen forms about 80% of the air around the earth

Step-by-step explanation:

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Answer 2

These are known as 'true ribs' and they are connected to your sternum by strips of cartilage. The next three pairs of ribs are known as 'false ribs'. Instead of attaching directly to your sternum, they all attach to your lowest true rib. The last two pairs of ribs are called 'floating ribs'.