Question

Please help with Question-8th of section 'B'​

Answer 1

Answer:

(y - 3) (y + 5)

Step-by-step explanation:

 y² + 2y - 15

= y² + 5y - 3y - 15

= y(y + 5) - 3(y + 5)

= (y - 3) (y + 5)

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Answer 2

Answer:

so y=3 or y=-5

Step-by-step explanation:

y^2 +2y -15=0                       15 = 3×5

y^2+5y-3y-15=0

y(y+5)-3(y+5)=0

y-3 (y+5) =0

y-3=0  | y+5=0

so y=3 | y=-5