(13x+14)(6x-5)=0 78x²-65x+84x-70=0 78x²+19x-70=0 It was equation. ______________ Factoring⇒ a×c=78×(-70)=-5460 84×(-65)=-5460 84+(-65)=19 which is b __________________ 78x²+84x-65x-70=0 6x(13x+14)-5(13x+14)=0 (13x+14)(6x-5)=0 13x+14=0 6x-5=0 13x=-14 6x=5 x=-14/13 x=5/6 Two solution X=-14/13;5/6
