It is just Phosphate buffered saline.
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-1x=5nSteps:3x-4x=5n like terms3-4=-1 add x -1x-1x=5n not like termsanswer -1x=5n
2x2+1x-3=0 4+x-3=0 x+1+0 x=-1 is your final answer
3x+7=4x-73x=(-)7+4x-4x(-)1x=(-)7________(-)1x=7add (-3x) to each side of equation3x +7 = 4x-3x +3x +7 = 4x -3x0 +7= 1x7=x
the derivative of 1x would be 1 the derivative of x to the power of 1 would be 1. the derivative of x+1 would be 1 the derivative of x-1 would be 1 im not sure what you are asking, but however you put it, it's 1.
X2 - 3X - 4 = 0factored(X + 1)(X - 4)----------------X = - 1X = 4-------------------(- 1, 0) and (4, 0)================solution set of X interception points