I've run into a problem in my intermediate Algebra class, that involves two similar triangles. The smaller of the two triangles has sides that measure, 6, 12, 4x+2. The larger triangle has sides that measure, 10, 20, 4x+9. The equation given is; 6 over 10 is equal to 12 over 20 is equal to 4x+2 over 4x+9. I'm to solve for X then provide lengths for the sides, 4x+2 and 4x+9.
I've applied the cross product rule using 6 over 10 multiplied by 4x+2 over 4x+9. No matter what I do, I just can't make it work. I've watched videos on you tube etc, but none have examples with polynomials.
Please help. Thanks.