Question

Factorise : y2 - 5y - 24​

Answer 1

Step-by-step explanation:

=y2-8y+3y-24

=y(y-8) +3(y-8)

=(y+3)(y-8)

hope this helps

Answer 2

Answer:

using trinomial x² + ax + b,

y² - 5y - 24

product = - 24 (- 8 x 3 = - 24)

sum = - 5 ( -8 + 3 = -5)

y² - 5y - 24

= y² -8y + 3y - 24

= y( y - 8) + 3(y - 8)

= (y - 8) (y + 3)

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