Question

5.
For quadratic equation x² + 4x - 5 = 0)
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Answer 1

Answer:

${x}^{2} + 4x - 5 = 0$

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

${x}^{2} + 5x - x - 5 = 0$

$x(x + 5) - 1(x + 5) = 0$

$(x - 1)(x + 5) = 0$

$x = 1 \: \: or \: \: x = - 5$

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Answer 2

Answer:

by spitting the middle term

you can get the answer