x2 + 3x - 4 এর একটি উৎপাদক কোনটি?
Solution
Correct Answer: Option C
x²+3x-4=x²+4x-x-4
=x(x+4)-1(x+4)
=(x+4)(x-1)
=x(x+4)-1(x+4)
=(x+4)(x-1)
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