Question

if X square + 1 by 4 x square is equal to 17 find the value of x minus 1 by 2 x​

Answer 1

$x^{2} + 4 \div 4 = 17 \\ x {}^{2} + 4 = 68 \\ {x }^{2} = 64 \\ x = 8$

$x - 1 \div 2 \times x = 8 - 1 \div 2 \times 8 = 7 \div 16 = .4375$