Question

Which of the following is not a Quadratic Equation. (x+2)²=2(X+3). x²+3x=-1(1-3x)². (x+2)(x-1)=x²-2x-3. 5x²+3x=(4x-6)​

Answer 1

Answer:

Step-by-step explanation:

$(x + 2)^2 = 2(x + 3) \\ x^2 + 4 + 2x = 2x + 6$

Here the degree of the equation is 2

Hence it is quadratic

$x^2+ 3x = -1(1 + 9x^2 - 6x)\\ x^2 + 3x = -1 + 9x^2 + 6x \\ 8x^2 + 3x - 1 = 0$

Here the degree of the equation is 2

Hence it is quadratic

$(x +2)(x-1)=x^2-2x-3\\ x^2+x-1=x^2-2x-3\\ x-1=-2x-3$

Here the degree of the equation is 1

Hence it is not quadratic

Answer 2

Answer:

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