The formation of Earth and the solar system is currently explained by the widely accepted scientific theory called the nebular hypothesis. According to this hypothesis, about 4.6 billion years ago, a giant molecular cloud, or nebula, began to collapse under its own gravity. As the collapse occurred, the cloud started to spin, forming a rotating disk of gas and dust called the protoplanetary disk. From this disk, the Sun and the planets, including Earth, gradually formed.
The idea that Earth could have been formed through five collisions of other planets through black holes is not a supported scientific explanation. Black holes are extremely dense objects formed from the remnants of massive stars, and their interactions with planets are generally destructive rather than constructive.
While celestial collisions can occur in the universe, they typically involve celestial bodies like planets, moons, asteroids, or comets, rather than being driven by black holes. Collisions between massive objects would likely result in catastrophic destruction rather than the formation of a habitable planet like Earth.
It's important to rely on scientific evidence and theories supported by observations and research when discussing the formation of celestial bodies. The current understanding of Earth's formation is based on the nebular hypothesis, which is backed by a substantial body of scientific evidence.