Question

Which of the following expressions is equivalent to4x + 7- 5x2 + 3 - 2x ?A- 5x2 - 2x - 10B 5x2 - 6x - 10C - 5x²–2x+4D - 12x - 21

Answer 1

C

Reordering the expression, from the highest coefficient to the lowest and independent terms:

4x +7 -5x²+3 -2x

This way:

-5x² +4x -2x +7

And simplifying it to, by adding algebraically like this:

-5x² +2x+7

So, 4x +7 -5x²+3 -2x It's the same as -5x²-2x+4