(ii) Determine whether the values given against the quadratic equation

1.	(ii) Determine whether the values given against the quadratic equation are theroots of the equation or not.x² + 4x 5=0. x=1, - 1.
Answer» PUT the VALUE of X = 1 ${x}^{2} + \: 4x \\ {1}^{2} + 4 \times 1 \\ 1 + 4 \\ = 5 \\ it \: is \: the \: root \: of \: equation \\ again \: putting \: - 1 \: value \\ { - 1}^{2} + 4 \times ( - 1) \\ 1 - 4 \\ = - 3 \\ it \: is \: not \: the \: root \: o \: equation \\ plz \: mark \: me \: as \: brianliests$

(ii) Determine whether the values given against the quadratic equation are theroots of the equation or not.x² + 4x 5=0. x=1, - 1.

Answer»

${x}^{2} + \: 4x \\ {1}^{2} + 4 \times 1 \\ 1 + 4 \\ = 5 \\ it \: is \: the \: root \: of \: equation \\ again \: putting \: - 1 \: value \\ { - 1}^{2} + 4 \times ( - 1) \\ 1 - 4 \\ = - 3 \\ it \: is \: not \: the \: root \: o \: equation \\ plz \: mark \: me \: as \: brianliests$

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(ii) Determine whether the values given against the quadratic equation are theroots of the equation or not.x² + 4x 5=0. x=1, - 1.​

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(ii) Determine whether the values given against the quadratic equation are theroots of the equation or not.x² + 4x 5=0. x=1, - 1.