F(x) − g(x) = 2x^2 − 9x - (<span> -5x^2 + 4x)
</span>f(x) − g(x) = 2x^2 − 9x + 5x^2 - 4x
f(x) − g(x) = 7x^2 - 13x
Answer:
9
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
Answer:
12
Step-by-step explanation:
