factorise : 10x^2+7x+1
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Step-by-step explanation:
10x^2 + 7x + 1
by splitting the middle term
10x^2 + 2x + 5x + 1
2x(5x + 1) 1 (5x + 1)
(2x + 1)(5x + 1)
if
2x + 1 = 0. or. 5x + 1 = 0
x =-1/2. x = -1/5
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