Question

check whether x (2x+3)=x²+1 is a quadratic equation​

Answer 1

Answer:

yes, the given equation is a quadratic equation.

Step-by-step explanation:

x (2x+3)=x²+1

=> 2x² + 3x =  x²+1

=> 2x² - x² + 3x +1 =  0

=> x² + 3x +1 =  0  , which is a quadratic equation.

Answer 2

Answer:

Yes it is a quadratic equation

(x.x) + 3x - 1 = 0

so axx +bx + c = 0

so from here we have

a = 1 , b=3 , c = -1