Step-by-step explanation:
x²+4-4x+y²=3
x²+y²-4x+1=0
So this is a BIDMAS question so first you do what’s in the brackets so you have (1-9x1-4) and you have to do the multiplication first out of that to get (1-9-4) which is -12 so then you have overall 36 / -12 + 1 + 2 so you have to do the division first so do 36/-12 to get -3 and you have -3 + 1 + 2 which is 0 so your answer is 0.
Answer:
4y²-1/4 is the required answer
Step-by-step explanation:
2(m-27n) this is the answer
-9(3-r)=45
-27+9t=45
9r=45+27
R=72/9
R=8
The answer is 8 not -8
