Please help me I need help with this math assignment I don’t understand it at all

Is their any instructions to what to do?

Factor the expressions

Step-by-step explanation:

I'll do one for you

11) x²-11x+30

   x²-5x-6x+30

  x(x-5)-6x+30

  x(x-5)-6(x-5)

solution: (x-5)(x-6)

m∠abd = m∠dbc

step-by-step explanation:

given : ab bisects ∠dbc

as we know that bisection means ab divides   ∠dbc   in two equal angles named as   ∠dba and   ∠abc

so, m∠abd = m∠dbc  

because ab bisects ∠dbc.

hence , the first statement m∠abd = m∠dbc is true.