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