Question

Solve by fomula method (i) x2 - 2x +5 =0
(ii) 3x2 + x - 2 =0​

Answer 1

Answer:

Please check first question because in this question something missing.

$3x {}^{2} + x - 2 = 0 \\ 3x {}^{2} + (3 - 2) x - 2 = 0 \\ 3x {}^{2} + 3x - 2x - 2 = 0 \\ 3x(x + 1) - 2(x + 1) = 0 \\ (x + 1)(3x - 2) = 0 \\ so \\ x = - 1 \: \: and \: \: x = 2 \div 3$