Question

Simplify 4k2(3k3 + 5k2 + 6k – 7)

Answer 1

I'm not sure.. I think it's expand the expression.
\[4k^2(3k^3 + 5k^2 + 6k – 7) \]\[=4k^2(3k^3) + 4k^2(5k^2) + 4k^2(6k) – 4k^2(7) \]\[=12k^{2+3} + 20k^{2+2} + 24k^{2+1} – 28k^2 \]\[=...?\]

Answer 2

these are the choices hun :)


12k3 + 20k2 + 24k – 28

12k5 + 20k4 + 24k3 – 28k2

7k3 + 9k2 + 10k – 3

7k5 + 9k4 + 10k3 – 3k2

Answer 3

*it's about expanding

Answer 4

Perhaps you can get the answer after you do the addition for the power!~

Answer 5

OMG its b thank you muah i love you i love you i love you i love you

Answer 6

:O Welcome.....