Question

find the roots of the quadratic equation by factorisation:x^2+4x=5​

Answer 1

${x}^{2} + 4x = 5 \\ {x}^{2} + 4x - 5 = 0 \\ {x}^{2} + 5x - x - 5 = 0 \\ x(x + 5) - 1(x + 5) = 0 \\ (x - 1)(x + 5) = 0$

$x - 1 = 0 \\ x = 1 \\ \\ and \\ \\ x + 5 = 0 \\ x = - 5$

Answer 2

Answer:

Anjum banu

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