Question

7m2-20m+13=0by factorisation method​

Answer 1

7m^2-20m+13=0

=> 7m^2- (13+7)m + 13 = 0

=> 7m^2 - 13m - 7m + 13 = 0

=> m (7m - 13) - 1 (7m - 13) = 0

=> (7m - 13) (m - 1) = 0

=> (7m - 13) = 0. or, (m - 1) = 0

=> m = 13/7. or,. m = 1