3. Factorise : -9x2 – 27x – 20
Answers
Answered by
15
Factorization means writing numbers in the form of product of their factors.
Question:
Factorise:
Solution:
To factorize p(x)
So the factors of are (3x+5)(-3x-4)
TheCommando:
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Answered by
0
Answer:
x= -4/3
Or x= -5/3
Step-by-step explanation:
9x2+27x+20 sum=27
product=9×20=180
9x2+15x+12x+20=0
3x(3x+5) +4(3x+5)=0
(3x+4)(3x+5) =0
now to find zeroes, equate it to 0
3x+4=0
3x= -4
x= -4/3
3x= -5
x=-5/3
hope it's clear!!
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