Question

factorise

1.x³-6x+4
2.x³-19x-30​

Answer 1

factorise

1.x³-6x+4

➡️ f(2) = (2*2*2)-6(2)+4

0 = 8 - 12 + 4

0 = 0

Hence, Factorised

2.x³-19x-30 = This answer given in above attachment