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1.What is the sum of the zeros of g(x)=x²-7x+12?
2.What is the product of the zeros of the function of g(x)=4x²-4x-3?
3.What is the sum of the zeros of f(x)=2x²+6x+k?
4.What should be the value of K in f(x)=x²-6x+k such that zeros are equal real numbers?
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Answer:
g(x)=X²-7X+12
sol'n:
=x²+7x+12=0
=X²+(4+3)X+12
=X²+4X+3X+12
=X(X+4)+3(X+4)
= (X+4).(X+3)
Ans is X= -4, -3