Factorize
a) 3b^2 - 5ab - 12a^2
b) y^2 - 2y - 15
Please list steps, thanks
Factorization
2009-05-13 7:19 am
回答 (2)
2009-05-13 7:27 am
✔ 最佳答案
a) 3b 4a
X
b -3a
-----------------------
4ab -9ab = -5ab
3b^2 - 5ab - 12a^2 = ( 3b + 4a ) ( b - 3a )
b)
y -5
X
y 3
-----------------
-5y 3y = -2y
y^2 - 2y - 15 = ( y - 5 ) ( y + 3 )
2009-05-14 6:45 am
Factorize
a) 3b2 - 5ab - 12a2
b) y2 - 2y - 15
Answers:
a) 3b2-5ab-12a2
=(3b+4a)(b-3a)
b) y2-2y-15
=(y-5)(y+3)
Wishing you success in doing Mathematics.
May God bless your family forever!
a) 3b2 - 5ab - 12a2
b) y2 - 2y - 15
Answers:
a) 3b2-5ab-12a2
=(3b+4a)(b-3a)
b) y2-2y-15
=(y-5)(y+3)
Wishing you success in doing Mathematics.
May God bless your family forever!
收錄日期: 2021-04-23 18:18:43
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