Question is attached!​

Find the sum of 4x^{2} -4+6 and -7^{2} +3x+1

Michael is training for a marathon. in his first week he plans to run 8miles. what path should he take

In the diagram, the ratios of two pairs of corresponding sides are equal to prove that almn - axyz by the sas similarity theorem, it also needs to be shown that x 6 z un z zz un = 2x zləzz lezy