Question

check whether 2√x-x^2=1 is a quadratic equation​

Answer 1

Answer:

Yes x² + 3x -4 = 0 is a quadratic equation because it gives two answers for x that is x1 = -4 , x² = 1.

Step-by-step explanation:

Step-by-step explanation:Solving the quadratic equation x² + 3x - 4 = 0

Step-by-step explanation:Solving the quadratic equation x² + 3x - 4 = 0x² + 3x - 4 = 0

Step-by-step explanation:Solving the quadratic equation x² + 3x - 4 = 0x² + 3x - 4 = 01) Write as a difference.

x² + 4x - x - 4 = 0

2) Factor out x from the expression and then the negative sign.

2) Factor out x from the expression and then the negative sign.x ( x + 4 ) - ( x + 4 ) = 0

2) Factor out x from the expression and then the negative sign.x ( x + 4 ) - ( x + 4 ) = 03) Factor out ( x + 4 ) from the expression.

( x + 4 ) ( x - 1 ) = 0

( x + 4 ) ( x - 1 ) = 04) Split into possible cases...

x + 4 =0 => x1 => -4

x + 4 =0 => x1 => -4x - 1 = 0 => x2 => 1

Hence solved ✅✅✅