Write a set of side lengths that could be similar to the triangle shown below

Heather is writing a quadratic function that represents a parabola that touches but does not cross the x-axis at x = -6. which function could heather be writing? fx) = x2 + 36x + 12 = x2 - 36x - 12 f(x) = -x + 12x + 36 f(x) = -x? - 12x - 36

Having a hard time understanding this question (see attachment).

Write 5(6x+4)-2(5x-2) in the form a(bx+c) where a,b and c integers and a> 1