Evaluate (4x+2) (4x+2)​

16^2+16+4

16x^2 + 16x + 4

Step-by-step explanation:

Apply the so-called FOIL method of multiplying products of binomials:  F stands for 'first terms,' which are 4x and 4x; O stands for "outer terms," which are 4x and 2; I stands for 'inner terms,' which are 2 and 4x; and L stands for "last terms," which are 2 and 2.

To evaluate (4x+2) (4x+2)​, (4x+2) (4x+2)​ = 16x^2 + 8x + 8x + 4

This simplifies to

16x^2 + 16x + 4

25/4

step-by-step explanation:

call segment cd's length x. because dc and ab are parallel, angle acd and cab, so triangles adc and abc are similar and we can set up the equation x / ac = ac / ab, or x / 5 = 5 / 4 and x = 25/4.