Question

Simplify.
Write not type plz......

Answer 1

Step-by-step explanation:

2x²+X=

X(2x+1)=0

x=0

or X is equal to -1/2

Answer 2

Answer:

$1) \: 2x ^{2} - x - 1 = 0 \\ \\ = > 2x ^{2} - (2 - 1)x - 1 = 0 \\ \\ = > 2x ^{2} - 2x + x - 1 = 0 \\ \\ = > 2x(x - 1) + 1(x - 1) = 0 \\ \\ = > (2x - 1)(x - 1) = 0 \\ \\ either \: 2x - 1 = 0 \\ \\ = > 2x = 1 \\ \\ = > x = \frac{1}{2} \\ \\ or \: x - 1 = 0 \\ \\ = > x = 1 \\ \\ 2) \: 2x ^{2} + x = 0 \\ \\ = > x(2x + 1) = 0 \\ \\ either \: x = 0 \\ \\ or \: 2x - 1 = 0 \\ \\ = > x = \frac{ 1}{2}$

hope it helps u ✌