Question

Check whether x(x-2)+3=(x+1)(x-1) is quadratic equation​

Answer 1

$\huge{\sf{\underline{\underline{Question:}}}}$

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Check whether x(x-2)+3=(x+1)(x-1) is quadratic equation or not.

$\huge{\sf{\underline{\underline{Solution:}}}}$

x(x-2)+3 = (x+1)(x-1)

x² - 2x +3 = x² - x + x - 1

x² - x² - 2x + 3 + 1 = 0

-2x + 4 = 0

No, it is not a quadratic equation because it is not in the form of ax²+bx+c.

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Answer 2

Answer:

no.

Step-by-step explanation:

x(x-2)+3=(x+1)(x-1)

x^2-2x+3=x^2-1

-2x+3+1=0

so now we can see maximum power of x is 1.

so it's not quadratic equation.