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Question

Question 1(iv)
Check whether the following are quadratic equations:

(iv)(x3)(2x+1)=x(x+5)

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Solution

(iv)(x3)(2x+1)=x(x+5)2x25x3=x2+5xx210x3=0
It is of the form ax2+bx+c=0,where a=1,b=10,c=3 in this case.
Hence, the given equation is quadratic equation.

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