Need help with this please.

16cm

Step-by-step explanation:

since it is a square, all sides are equal

which means DA = AB

so

2(x-6) = x+2

so

2x-12=x+2

solve for x

x = 14

you can substitute x in either of the equations, to find the length of the side

using x+2

14+2 =16

thus side is 16cm

when studying polynomials, you often hear the terms zeros, roots, factors and x x the multiplicity of a zero is important because it tells us how the graph of the let's look at the graph of a function that has the same zeros

step-by-step explanation:

a.

step-by-step explanation:

step 1 distribute 2 to every term in the parentheses

step 2 add 10 on both sides of the equal sign