Question

set up an equation and solve each problem
plssss help me i need now plsssss help me​

Answer 1

Step-by-step explanation:

$1. \\ {x}^{2} = 9 \times x \\ {x}^{2} = 9x \\ {x}^{2} - 9x = 0 \\taking \: x \: as \: common \\ x(x - 9) = 0 \\ x - 9 = 0 \\ x = 0 + 9 \\ x = 9$

$2.\\ 4({x}^{2} ) = 20 \times x \\ 4 {x}^{2} = 20x \\ 4 {x}^{2} - 20x = 0 \\ 4 {x}^{2} -5 \times 4x = 0 \\ 4x(x - 5) = 0 \\ x - 5 = 0 \div 4x \\ x - 5 = 0 \\ x = 0 + 5 \\ x = 5$