factorize by splitting the middle term 2k²-10k-12
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Step-by-step explanation:
2k²-10k-12
sum=-10,product=-12*2=-24-->-12,2
factorising
2k²-12k+2k-12
2k(k-6)+2(k-6)
(2k+2)(k-6).
for solutions:
2k+2=0 and k-6=0
k=-1. k=6
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