13. Write a quadratic polynomial, the sum and product of whose zeroes are 3 and -2.
14. If (x-2) is a factor of x-Bax + 3a - 7, then find the value of a
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Step-by-step explanation:
The quadratic polynomial is : - x×y = 3
x+y = -2
Hope its help....
Answered by
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Answer:
13.
zeroes of the quadratic polynomial a and b,
sum of the zeroes,
a+b = 3
product of the zeroes,
ab = -2
quadratic polynomial is in the form of,
x²-(a+b)x+ab = 0
x²-3x-2 = 0
14.
x-2 is a factor of polynomial x-8ax + 3a - 7 ,
f(x) = x-ax + 3a - 7
f(2) = 2-a(2)+3a -7 = 0
2-2a+3a-7 = 0
a = 5
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