Question

factorise the sum 6s²+7s-3

Answer 1

6s^2+7s-3 = 6s^2 +9s-2s-3 = 3s(2s-3)+1(2s-3) = (3s+1)(2s-3)

Answer 2

s= (-7 +- ( 49 +72)^1/2 ) /12
s = (-7 +- (121)^1/2)/12
s= (-7+- 11)/ 12
s=-18/12
s=4/12