7√2 K squared - 10k -4 √2 factorise
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7√2k² -10k-4√2
∴7√2k²-14k+4k-4√2
∴7√2k(k-√2)+4(k-√2)
∴(7√2k+4)(k-√2)
Therefore k=√2,k=-4/7√2
Hope it helps?.... !
∴7√2k²-14k+4k-4√2
∴7√2k(k-√2)+4(k-√2)
∴(7√2k+4)(k-√2)
Therefore k=√2,k=-4/7√2
Hope it helps?.... !
himanshu324:
correct
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3
Hy
7√2 ksq -10k-4√2=0
7√2 k sq -14k +4k -4√2=0
7√2k(k -√2)+4(k-√2)=0
(7√2k+4)(k-√2)=0
k= -4/7√2,√2 Ans
7√2 ksq -10k-4√2=0
7√2 k sq -14k +4k -4√2=0
7√2k(k -√2)+4(k-√2)=0
(7√2k+4)(k-√2)=0
k= -4/7√2,√2 Ans
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