Answer:
Answer: 4x² - 9x + 20
Step-by-step explanation:
• General quadratic equation:
[tex]{ \rm{ {x}^{2} - (sum \: of \: roots)x + (product \: of \: roots) }}[/tex]
• sum of roots → 4 + 5 = 9
• product of roots → 4 × 5 = 20
• substitute:
[tex]{ \boxed{ \rm{4 {x}^{2} - 9x + 20 }}}[/tex]
