Question

7y²-5y-2=0 solve using formula​

Answer 1

Answer:

7y2-7y+2y-2=0

or, 7y (y-1)+2 (y-1)=0

or, (y-1) (7y+2)=0

either y=1

or 7y=-2

y= -2/7

So, the answer is 1

Answer 2

Answer:

using factorization formula

Step-by-step explanation:

7y²-5y-2=0

7y²-7y+2y-2=0

7y (y-1) + 2 (y-1)=0

(7y+2) (y-1)=0

y= -2/7 , y= 1