factorise a^2 - 6a -a
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Answered by
4
Now,
a^2 - 6a - a
= a^2 - 7a
= a (a - 7),
which is the required factorization.
___________
Now,
a^2 - a - 6
= a^2 - (3 - 2)a - 6
= a^2 - 3a + 2a - 6
= a (a - 3) + 2 (a - 3)
= (a - 3) (a + 2),
which is the required factorization.
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Anonymous:
wrong bro!
Answered by
7
Hey dear!!
a²-6a-a !!❎❎
a²-a -6✔✔
Here is yr answer.....
Method l :
=> a²-a-6
=> a² +2a -3a -6
=> a(a+2) -3(a+2)
=> (a+2) (a-3)
a = -2
a = 3
Method ll :
=> a²-a-6
It us in the form of
x²+(a+b)x+ab = (x+a)(x+b)
x = a, a = -3 , b = 2
=> a² + (-3+2)x +(-3)×2
=> (x+(-3) ) (x+2)
=> (x-3)(x+2)
x = 3
x = -2
Hope it hlpz....
a²-6a-a !!❎❎
a²-a -6✔✔
Here is yr answer.....
Method l :
=> a²-a-6
=> a² +2a -3a -6
=> a(a+2) -3(a+2)
=> (a+2) (a-3)
a = -2
a = 3
Method ll :
=> a²-a-6
It us in the form of
x²+(a+b)x+ab = (x+a)(x+b)
x = a, a = -3 , b = 2
=> a² + (-3+2)x +(-3)×2
=> (x+(-3) ) (x+2)
=> (x-3)(x+2)
x = 3
x = -2
Hope it hlpz....
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