To factorise this equation
2x² - 10x + 8
we will do in steps...
Step 1
multiplying 2 * 8 = 16. So, we want that factors which add or subtract each other to make 10
2 * 8 = 16 and we also know that 2 + 8 = 10 so this is perfect factor for this equation.
2x² - 2x - 8x + 8
Step 2
Talking commons out from the new equations
2x ( x - 1 ) - 8 ( x - 1 )
Step 3
talking answers from the result.
( 2x - 8 ) ( x - 1 )