Question

Evaluate the product of $(a-5)(a-6)$

Answer 1

The given polynomials are $a-5$ and $a-6$ we multiply them as follows:

$(a-5)(a-6)=(a\times a)+(a\times -6)+(-5\times a)+(-5\times -6)=a^2-6a-5a+30=a^2-11a+30$

Hence, $(a-5)(a-6)=a^2-11a+30$.