Math, asked by akshit55, 1 year ago

if -3 is one of the zeroes of polynomail (k-1)x2+kx+1, find value of k

Answers

Answered by anugyasoni
1
i think the valur of k is 8 by 9

anugyasoni: how
Ashaybro: No
anugyasoni: ????
Ashaybro: .how??????????
rawatshivam763: x=-3
Ashaybro: Solve it
rawatshivam763: putting value in x
rawatshivam763: solved
anugyasoni: k is 8 by 9 according to me
anugyasoni: plz mark as brainliest
Answered by Anonymous
0

Step-by-step explanation:

GIVEN:-)

→ One zeros of quadratic polynomial = -3.

→ Quadratic polynomial = ( k - 1 )x² + kx + 1.

Solution:-

→ P(x) = ( k -1 )x² + kx + 1 = 0.

→ p(-3) = ( k - 1 )(-3)² + k(-3) + 1 = 0.

=> ( k - 1 ) × 9 -3k + 1 = 0.

=> 9k - 9 -3k + 1 = 0.

=> 6k - 8 = 0.

℅====

=> 6k = 8.

 \large \boxed{=> k = \frac{8}{6} = \frac{4}{3} }

Hence, the value of ‘k’ is founded .

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