Which statement about the function f(x)=x2βxβ20 is true?The expression x2βxβ20 has factors (xβ5) and (x+4), and f(x) has zeros at x=β5 and x=4.The expression x 2 β β x β β 20 has factors ( x β β 5 ) and ( x + 4 ) , and f ( x ) has zeros at x = β β 5 and x = 4 .The expression x2βxβ20 has factors (xβ5) and (x+4), and f(x) has zeros at x=β4 and x=5.The expression x 2 β β x β β 20 has factors ( x β β 5 ) and ( x + 4 ) , and f ( x ) has zeros at x = β β 4 and x = 5 .The expression x2βxβ20 has factors (xβ4) and (x+5), and f(x) has zeros at x=β5 and x=4.The expression x 2 β β x β β 20 has factors ( x β β 4 ) and ( x + 5 ) , and f ( x ) has zeros at x = β β 5 and x = 4 .The expression x2βxβ20 has factors (xβ4) and (x+5), and f(x) has zeros at x=β4 and x=5.The expression x 2 β β x β β 20 has factors ( x β β 4 ) and ( x + 5 ) , and f ( x ) has zeros at x = β β 4 and x = 5 .