Question

solve the quadratic equation by factorisation ​

Answer 1

Answer:

4y²=20

y²=20/4

y²=5

(y+5) (y+5)

I think this answer is correct

Answer 2

Answer:

2+2y2=20

2+2y2=2+2×5

2(2+2)2(2+5)

(2+2)(2+2)+5

y2= (2+2)(2+2)

done