Question

Solve (x-1)(x+1) +5=x(x-2) +6. 3​

Answer 1

Step-by-step explanation:

$or. (x - 1)(x + 1) + 5 = x(x - 2) + 6.3 \\ or. {x}^{2} + x - x - 1 + 5= {x}^{2} - 2x + 18 \\ or. {x}^{2} - 4 = {x}^{2} - 2x + 18 \\ or. {x}^{2} - {x}^{2} + 2x = 18 + 4 \\ or.2x = 22 \\ or.x = 22 \div 2 \\ therefore.x = 11.$

hope it helps

Answer 2

Answer:

$\: \: \: \: \: \: (x-1)(x+1) +5=x(x-2) +6. 3 \\ {x}^{2} \: \: + x - x - 1 + 5 = {x}^{2} - 2x + 6.3 \\ \\ \: \: {x}^{2} - {x}^{2} + x - x - 1 + 5 + 2x - 6.3 = 0 \\ \\ 4 + 2x - 6.3 = 0 \\ 2x - 2.3 = 0 \\ 2x = 2.3 \\ x = 2.3 \2 \\ 1.15$