A-Level Maths: H3-06 [Integration: A Definite Integral Problem]

[meowpurrr]

could you write it as k(14k+8)(8k+1)?

= 112k^3 + 72k^2 + 8k
= k(112k^2 + 72k + 8)
= k(112k^2 + 14k + 64k + 8)
= k(14k(8k + 1) + 8(8k + 1))
= k(14k + 8)(8k + 1)

or have i made an error in my workings?

[ninanakagawa]

why don't you add + C for 2x³+6x²+4x

[ZakThe]

3:05 - How did you just factorise the equation?! That’s crazy you just did it mentally

Idk how to do this what’s the process - vid?