Question

(x-1)^2 +(x+1).(x-1)

Answer 1

Explanation:

`\implies \sf{(x - 1) {}^(2) + (x + 1)(x - 1)} \\ \implies \sf{x}^(2) + {(1)}^(2) - 2(x)(1) + {x}^(2) - {(1)}^(2 ) \\ \implies \sf {x}^(2) + 1 - 2x + {x}^(2) - 1 \\ \implies \red{\sf 2 {x}^(2) - 2x}`

Hence, solved!