If f(x)=5x^2-3 and f(x)=5x^2+30x+42, what is the value of a?
So that is the problem in my math homework, but how come you would square (x+a) in the first step?
F(x)= 5(x+a)^2
=5(x^2+2ax+a^2)

Apolygon is shown on the graph: a polygon is shown on the coordinate plane. vertices are located at 3 comma 5, 1 comma 3, 1 comma 1, 2 comma 0, 4 comma 0, 5 comma 1, and 5 comma 3. what effect will a translation 3 units down and 2 units left have on the polygon? be sure to address how it could impact the angles, side lengths, and congruency between the original pre-image and the image. xd i need