Question

y²-2y-15 BY SPLITTING MIDDLE TERM ​

Answer 1

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Answer:

The value of y is 5.

Step-by-step explanation:

$= {y}^{2} - 5y + 3y - 15$

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

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

$y - 5 = 0 \: \: \: \: y + 3 = 0$

$y = 5 \: \: or \: \: - 3$

negative is not real root.

so the value of y is 5.

Answer 2

Answer:

y = 5 or y = -3

Step-by-step explanation:

y² - 5y +3y -15 = 0

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

y = 5 or y = -3