Completing the square x2+4x-5=0
Answer (1)
Answer:[tex] {x}^{2} + 4x - 5 = 0 \\ \\ {x}^{2} + 4x - 5 = 0 \\ {x}^{2} + 4x = 5 \\ \\ \: \: \: \: \: \: = ({ \frac{b}{2} })^{2} \: \: \\ = {( \frac{4}{2} })^{2} \\ = {2}^{2} \\ = 4 \\ \\ {x}^{2} + 4x + 4 = 5 + 4 \\ {x}^{2} + 4x + 4 = 9 \\ {(x + 2)}^{2} = 9 \\ \sqrt{ {(x + 2)}^{2} } = \sqrt{9} \\ x + 2 = ± 3 \\ \\ x_{1} = 2 + 3 \: \: \: \: \: \: \: \: x_{2} = 2 - 3 \\ x_{1} = 5 \: \: \: \: \: \: \: \: x_{2} = - 1[/tex]Step-by-step explanation:pa brainliest salamat. sana makatulong.
