Question

find the zeros of the polynomial f of x is equal to minus 2 x square + 4 x minus 4​

Answer 1

$f(x) = 2x {}^{2} + 4x - 4 \\ 2x {}^{2} + 4x - 4 = 0 \\ 2(x {}^{2} + 2x - 2) = 0 \\ x {}^{2} + 2x - 2 = 0 \\ x {}^{2} + 2x - 2 = 0 \\ \\ its \: factorisation \: is \: not \: possible \:$