The monotone increasing interval of function y = 2x Λ & #178; + x-3 is

The monotone increasing interval of function y = 2x Λ & #178; + x-3 is

y=2x∧²+x-3
=2(x²+1/2x)-3
=2(x²+1/2x+1/16)-1/8-3
=2(x+1/4)²-25/3
Monotone increasing interval is [- 1 / 4, + ∝)