Question

Factorise:
1) x²-x³-5x
2)a²-b²+a-b
3) a²/b² +2+ b²/a²
4) 3(x+2)²+35(x+2)-12
5) 49(x+2)²-81(y+4)²
6) If x+1/x=√5
Then find x²+1/x²​

Answer 1

Answer:

x=1•1

Step-by-step explanation:

u can substitutes and check