Most laptops lets you extend to 1 monitor only unless you have other connectivity (USB-C that outputs display, or a mini display port for example)
You can also buy something named USB™ 3.0 to Dual HDMI™ Multi-Monitor Adapter.
It will acts like an external video card and lets you connect 2 monitors on it.
Just be sure that it let's you extend screens and such because there's some similar adapters that will only mirror all the the screens.