factorise the following by splitting the middle term
15 t square - 2 t -1
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Step by step explanation:
15t^2 - 2t - 1
[rough just for explanation 15×1=15,so we need that numbers when we multiply them we get 15 and when we add or subtract them, we get -2 and the numbers are 3 and 5]
by middle term splitting,
3t ( 5t + 1 ) -1 ( 5t + 1 )
( 3t - 1 ) ( 5t + 1 )answer
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