Question

1.Check the whether the following are quadratic equations:
(iv) (x-3)(2x +1)=x(x+5)​

Answer 1

Answer : the above quadratic equation is Proved

Answer 2

Answer:

$(x - 3)(2x + 1) = x(x + 5) \\ 2 {x}^{2} + x - 6x - 3 = {x}^{2} + 5x \\ 2 {x}^{2} - {x}^{2} - 5x - 5x - 3 = 0 \\ {x}^{2} - 10x - 3 = 0 \\ its \: a \: quadratic \: equation.$