Question

FACTORIZE y2 - 21 y + 90 = 0 *


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Answer 1

Answer:

(y-6)(y-15)

Step-by-step explanation:

1. y2 - 21 y + 90
2. y^2 - 15y - 6y + 90
3. y(y-15) - 6(y-15)
4. (y-15)(y-6)

Answer 2

Answer:

(y-6)(y-15)

Step-by-step explanation:

y²-21y+90

y²-6y-15y+90

y(y-6)-15(y-6)

(y-6)(y-15)