what will be the sum of zeros of a quadratic polynomial X^2 + 7x+10?
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Answered by
1
Answer:
x²+7x+10
=x²+2x+5x+10
=x(x+2)+5(x+2)
=(x+2)(x+5)
now, either x+2=0 or x+5=0
so, x= -2 and x= -5
now sum of zeroes =(-2)+(-5)
= -2-5
= -7
anitasaxena8930:
धन्यवाद मित्र |
Answered by
3
Answer:
Your answer is
Step-by-step explanation:
x²+7x+10=0
x²+5x+2x+10=0
x(x+5)+2(x+5)=0
(x+5)(x+2)=0
x=-5,-2
so α= -5
β= -2
So, the sum of zeroes
α+β= -b/a
-5-2=-7/1
so, sum of zeroes is -7
HOPE IT IS HELPFUL.......
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