Question

Give answer using completing square method:

x
$x {}^{2} + 4x - 5$
​

Answer 1

Answer:

x=1,-5

Step-by-step explanation:

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