Question

(x-1) (x-3) (2x - 5)​

Answer 1

We have,

$\large\red{(x - 1)(x - 3)(2x - 5)}$

$\large{ = \blue{[(x - 1)(x - 3)](2x - 5)}}$

$\large{ = \blue{[ {x}^{2} - 3x - x + 3](2x - 5)}}$

$\large{ = \blue{( {x}^{2} - 4x + 3)(2x - 5)}}$

$\large{ = \blue{2 {x}^{3} - 5 {x}^{2} - 8 {x}^{2} + 20x + 6x - 15}}$

$\large{ = \green{2 {x}^{3} - 13 {x}^{2} + 26x - 15}}$