x²- 21x + 90 solve full pls
Answers
Answered by
3
Answer:
To Factorise : x
2
−21x+90
By splitting the middle term
=x
2
−6x−15x+90
=x(x−6)−15(x−6)
=(x−6)(x−15)
So, x
2
−21x+90=(x−6)(x−15)
goreesharma43:
actually this is factorise
in this we have to put formula
Sorry I am in class 8 And I have learnt to factorise like this only.
I don't know how to use the formula on this question ❓❓❓❓
Answered by
0
Step-by-step explanation:
in short the answer is (x-6)(x-15)
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