Question

What equation is equivalent to 2r^2-28r+38

Answer 1

2r² − 28r + 38 = 0 
2 (r² − 14r) = −38 
2 (r² − 14r + 49) = −38 + 2(49) 
2 (r − 7)² = 60 

(r − 7)² = 30
the answer is 2(r-7)² =60