Find the zeroes of the following quadratic polynomials and verify the relationship between
the zeroes and the coefficients.
1. 6x² - 3 - 7x
Answers
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0
Answer:
6.4x
think about it because I am not sure of my answer
Answered by
1
Step-by-step explanation:
f(x)= 6x²-3-7x
=6x² -7x - 3
= 6x² + 9x - 2x -3
= 3x(2x+ 3) - (2x+3)
= (2x+3)(3x-1)
2x+3= 0
2x= -3
x=-3/2
alpha =-3/2
3x-1=0
3x= 1
x=1/3
beta = 1/3
in given f(x) , a=6,b=-7, c=-3
verification
sum of zeroes = -coefficient of x / coefficient of x²
alpha + beta = - b/a
-3/2+ 1/3 = -(-7)/6
7/6. = 7/6
product of zeroes = constant / coefficient of x ²
alpha * beta = c/a
-3/2 * 1/3 = -3/6
-1/2. = -1/2
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