Question

ײ-6×+9=0 ñxnjfkfkflskjskw

Answer 1

Resposta:

${x}^{2} - 6x + 9 = \\ x = (6 + - \sqrt{ {( - 6)}^{2} - 4 \times 1 \times 9 } ) \div 2 \\ x = (6 + - \sqrt{36 - 36} ) \div 2 \\ x = 6 \div 2 \\ x = 3$