Question 267535
Please help me solve, this is not an equation, you can't solve it, just simplify it:
{{{(a^2 - 10a + 21) / (a^2 - 11a + 28)}}}
Both numerator and denominator will factor
{{{((a-7)(a-3)) / ((a-7)(a-4))}}}
:
(a-7) will cancel so you end up with
{{{(a-3)/(a-4)}}}