Question

Please solve 2x^2 -4x - 48 = 0

Answer 1

-4, 6

Explanation:

`2x^2 -4x - 48 = 0 \\ \\ 2( {x}^(2) - 2x - 24) = 0 \\ \\ {x}^(2) - 2x - 24 = 0 \\ \\ {x}^(2) - 6x + 4x - 24 = 0 \\ \\ x(x - 6) + 4(x - 6) = 0 \\ \\ (x - 6)(x + 4) = 0 \\ \\ x - 6 = 0 \: \: or \: x + 4 = 0 \\ \\ x = 6 \: \:o r \: \: x = - 4 \\ \\ x = - 4, \: \: 6`