The third one, 40-45 because the difference of the rest are 4, while that one is 5.
This is the concept of algebra, the solution of the given expression will be given as follows;
-5x+2x²=-6x
adding 5x on both sides we get
5x-5x+2x²=-6x+5x
2x²=-x
divide both sides by 2
(2x²)/2=-x/2
x²=-x/2
divide both sides by x
(x²)/x=-x/(2x)
x=-1/2
the answer is x=-1/2
Answer:
-56;+4
Step-by-step explanation:
56 oopposite is -56
-(-4)=+4
Attached the solution and work.
Answer:
irrational because the square root of 51 is irrational.
