Question

1. (y + 5) (y - 3) is​

Answer 1

Answer:

y^2-15

Step-by-step explanation:

(y+5)(y-3)

(y×y)-(5×3)

y^2-15

Answer 2

Answer:

Friend, your answer is y^2=8y-8

Step-by-step explanation:

=> (y+5) (y-3)                        {Using Identity: (x-a) (x+b) = x^2 + (a-b)x-ab}

=> (y+5) (y-3) = y^2+[5-(-3)]y-5(-3)

=> (y+5) (y-3) = y^2+(8)y-8

=> (y+5) (y-3) = y^2+8y-8

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