Question

Solve Quadratic Equations & Find the roots for the same :

1.) y⁴-8y²+15 =0
2.) 3x²-4x-7=0
3.)x²-4x+4=0
4.)2x²+10x+8=0
5.)x²-4x-12=0

Plz answer this with whole method and if you know the right answer with method than only answer plz its urgent.

Will mark as brainliest and also 10 points will be added :)
Answers
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Answer 1

Answer:

Here is the answer with whole solution.

Hope it helps!