Q9. Find the zeros of the quadratic polynomial x^2 + 7x + 12, and verify the
relation between the zeros and its coefficients.
Answers
Answered by
4
Answer:
x
2
+7x+12
zeros
x
2
+7x+12=0
(x+3)(x+4)=0
x=−3,−4
verification,
sum of roots =−
a
b
=−
1
7
=−7
product of roots =
a
c
=
1
12
=12
Hence proved.
Answered by
2
Answer:
x2+7x+12=0
x2+4x+3x+12=0
x(x+4)+3(x+4)=0
(x+4)(x+3)=0
x=-4 or x=-3
sum of zeros =-b/a= -7/1= -7
product of zeros=c/a=12/1 = 12
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