Question

How do you simplify `(19x^2 + 9x + 16) - (5x^2 + 12x + 7)`?

Answer 1

`=color(blue)(19x^2)color(purple)(+9x)color(red)(+16)color(blue)(-5x^2)color(purple)(-12x)color(red)(-7`
`=color(blue)(14x^2)color(purple)(-3x)color(red)(+9`