factorize : 7x^2- 10 x-8
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Using middle term factorisation:
7x²-10x-8
7x²-14x+4x-8
7x(x-2) 4(x-2)
(7x+4) (x-2)
7x+4=0 x-2=0
7x=-4 x=2
x=-4/7 x=2
Hope you will understand.
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