find the zeros of the quadratic polynomial and verify the relationship between the zeros and the coefficient of 6 x square - 7 x minus 3
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Answered by
11
Answer:-
Given Polynomial => 6x² - 7x - 3 = 0
By splitting the middle term,
→ 6x² - 9x + 2x - 3 = 0
→ 3x(2x - 3) + 1 (2x - 3) = 0
→ (3x + 1)(2x - 3) = 0
→ 3x + 1 = 0
→ 3x = - 1
→ x = - 1/3
→ 2x - 3 = 0
→ 2x = 3
→ x = 3/2
Verification:
Let , a = 6 ; b = - 7 ; c = - 3.
We know that,
Sum of the roots = - b/a
→ - 1/3 + 3/2 = - ( - 7)/6
→ (- 2 + 9)/ 6 = 7/6
→ 7/6 = 7/6
Product of the roots = c/a
→ (- 1/3)*(3/2) = - 3/6
→ - 1/2 = - 1/2
Hence, Verified.
Answered by
5
Step-by-step explanation:
6x^2-7x-3
6^x-9x+2x-3
3x(2x-3)+1(2x-3)
(2x-3)(3x+1)
x=3/2 or -1/3
a+B= 3/2-1/3=coffecient of X/coffecient of X^2
=-7/6
aB=3/2x(-1/3)=co of c/co of x^2
=-3/6=-1/2
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