The temperature at midnight was 3°. by 6am, the temperature had dropped 5°. what was the temperature at 6am?
option c. no solution is the right answer.
here the given equations are y = x²+2x+3 )
and y = 4x-2 )
now we substitute the value of y from equation 2 into 1.
x²+2x+3 = 4x-2
x²+2x+3-2x = 4x-2-2x
x²+3 = 2x-2
x²+3-2x = 2x-2x-2
x²-2x+3 = -2
x²-2x+5 = 0
then value of
since in this solution √(-20) is not defined. therefore there is no solution.