the expression
3(x2 + 2x -3 - 4(4x2 - 7x +5 is equivilent to
a) -13x - 22x + 11
b) -13x2 + 34x - 29
c) 19x2 -22x + 11
d) 19x2 + 34x - 29
3(x^2 + 2x -3) - 4(4x^2 - 7x +5) =
3x^2 + 6x - 9 - 16x^2 + 28x -20 =
-13x^2 + 34x - 29
thank you for helping.
+73 
