- Ax = – 1 and
Solution:
2x2 + x – 1 = 02x2 + 2x – x –1 = 0
2x (x + 1) + (x + 1) = 0
(x + 1) (2x + 1) =0
x = –1 and
2x – 1 = 0
2x = 1
MathematicsHow do you factor and solve 2×2 + x – 1 = 0
How do you factor and solve 2x2 + x – 1 = 0
2x2 + 2x – x –1 = 0
2x (x + 1) + (x + 1) = 0
(x + 1) (2x + 1) =0
x = –1 and
2x – 1 = 0
2x = 1
