Question

$5x {}^{2} - 14x + 8 = 0$
$a (x - x {}^{1} )(x - x {}^{2} )$

Answer 1

5x²-14x+8=0
D=(-14)²-4*5*8=196-160=36
x₁=(14+6)/2*5=20/10=2
x₂=(14-6)/2*5=8/10=0,8
5x²-14x+8=5(x-2)(x-0,8)