Choose the correct simplification of 8x2(5x + 2x2 − 3). 16x4 − 40x3 + 24x2 16x4 + 40x3 − 24x2 40x4 + 16x3 − 5x2 40x4 − 10x3 + 5x2

The expression given to us is:

Herein, we can simplify it by opening up the bracket and multiplying each term inside the bracket by the term which is outside the bracket.

Thus, we get:

Rearranging the above expression in descending order of power we get:

From the given options we can see this is the second option. Hence the second option is the correct answer.