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Travka [436]
3 years ago
10

(13x+14)(6x-5)=0 Solve by factoring

Mathematics
1 answer:
NeTakaya3 years ago
5 0
(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
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