Express xsquared -8x +5 in the form (x-a)squared -b where a and b are integers

What number should be added to both sides of the equation to complete this square? x^2-10x=7

What is the missing reason in step 5? linear pair postulategivendefinition of complementary anglescongruent complements theorem

Which shows the correct lengths of side c in both scales? scale 1: 45 m; scale 2: 60 m scale 1: 60 m; scale 2: 45 m scale 1: 36 m; scale 2: 27 m scale 1: 27 m; scale 2: 36 m mark this and return save and exit