Given,

2x² – 17x – 30

Now first find the numbers whose-

Sum = - 17 and

Product = - 30 × 2 = - 60

Required numbers are 20 and 3,

So we get;

2x² – 17x – 30

= 2x² – 20x + 3x – 30

= 2x(x – 10) + 3(x – 10)

= (x – 10)(2x + 3)