Question

simple equation

x²+5x+3=0​

Answer 1

Step-by-step explanation:

${:}\longrightarrow$

${x}^{2} + 5x + 3 = 0 \\ = > {x}^{2} + 5x = - 3 \\ = > 4( {x}^{2} + 5x) = - 12 \\ = > 4x {}^{2} + 20x = - 12 \\ = > (2x) {}^{2} + 2 \times 5 \times 2x = - 12 \\ = > {(2x)}^{2} + 2 \times 2x \times 5 + {5}^{2} = {5}^{2} - 3 \\ = > (2x + 5) {}^{2} = 25 - 3 \\ = > (2x + 5) {}^{2} = 25 \\ = > 2x + 5 = 5 \\ = > 2x = 5 - 5 \: \: or \: \: 2x = - 5 - 5 \\ = > x = 0 \: or \: \: x = - 5$

Answer 2

Answer:

thanks for free points