Q Factorise a) 202 – 7X-15 by 84-20...
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Q Factorise a) 202 – 7X-15 by 84-200-2015 o 982-120+41 d 9x?_12x+3

11th - 12th Class
Maths
Solution
111
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i') ( 2 x^{2}-7 x-15=0 ) ( 2 x^{2}-10 x+3 x-15=0 ) Taking common ont term, ( begin{array}{ll}text { 7. } 2 x[x-5]+3[x-5]=0 & text { (2) }43][x-5)end{array} )
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