6x²-3-7x find the zeros of tha quadratic polynomial and find the relationship between zeros
Answers
Given
We have given an equation : 6x²-7x-3
To Find
We have to find the zeroes and verify the relationship between zeroes and it's coefficients
=> 6x²-7x-3
=> 6x²-9x+2x-3
=> 3x(2x-3)+1(2x-3)
=> (3x+1)(2x-3)
Makes equal to zero,we get
=> (3x+1)(2x-3)=0
x= -1/3 & x= 3/2
Let the two zeroes be λ and β
From above Equation
a= 6,b= -7 and c = -3
Sum of zeroes= -b/a
λ + β = -b/a
-1/3+3/2
-2+9/6= 7/6
λ+ β= 7/6
-b/a= -(-7)6= 7/6
Product of zeroes = c/a
λ * β= -1/3*3/2= -3/6= -1/2
c/a= -3/6= -1/2
Hence,the relationship between the zeroes and it's coefficients verified.
Step-by-step explanation:
Given
We have given an equation : 6x²-7x-3
To Find
We have to find the zeroes and verify the relationship between zeroes and it's coefficients
\sf\huge {\underline{\underline{{Solution}}}}
Solution
=> 6x²-7x-3
=> 6x²-9x+2x-3
=> 3x(2x-3)+1(2x-3)
=> (3x+1)(2x-3)
Makes equal to zero,we get
=> (3x+1)(2x-3)=0
x= -1/3 & x= 3/2
Let the two zeroes be λ and β
From above Equation
a= 6,b= -7 and c = -3
Sum of zeroes= -b/a
λ + β = -b/a
-1/3+3/2
-2+9/6= 7/6
λ+ β= 7/6
-b/a= -(-7)6= 7/6
Product of zeroes = c/a
λ * β= -1/3*3/2= -3/6= -1/2
c/a= -3/6= -1/2
Hence,the relationship between the zeroes and it's coefficients verified.