Answer:
10/21
Step-by-step explanation:
Emily could start with the quadratic equation
... (2x+5)(2x+6)=31
... 4x² +22x +30 = 31
And then subtract the right side to put it into standard form.
... 4x² +22x -1 = 0 . . . . . . corresponds to the first selection
The best common factor of 10 and 25 are 5
Answer:
a- 16/100
b- 1/6
c- not sure
Step-by-step explanation:
