Question

Solve and give anwer upto 2 decimal place​

Answer 1

Answer:

x = –6 or +6

Step-by-step explanation:

$(x - 2) \div ( x + 2) + (x + 2) \div ( x - 2) = 4\\ (( x - 2) {}^{2} + (x + 2) {}^{2}) \div (x {}^{2} - 4) = 4\\ (x {}^{2} + 4 - 2x + x {}^{2} + 4 + 2x) \div (x {}^{2} - 4) = 4 \\ (2x {}^{2} + 8) \div ( x {}^{2} - 4) = 4 \\ 2x {}^{2} + 8 = 4(x {}^{2} - 4) \\ 2x {}^{2} + 8 = 4x {}^{2} - 16 \\ 2x {}^{2} - 4x {}^{2} = - 16 - 8 \\ - 2x {}^{2} = - 24 \\ x { }^{2} = 12 \\ x = - 6 \: or \: + 6$