Question

1
Hence, k = 7
EXERCISE 2A
Find the zeros of the following quadratic polynomials and verify the relationship
between the zeros and the coefficients:
1. x2 + 3x - 10
2x² - 2x -8
3. x2 +7 x +12
4,2x² - x-6
[CBSE 2017]
57 4x² - 4x -3 [CBSE 2008C]
6y5x² - 4–8x
[CBSE 2008]
7. 2x² - 11x +15
8/213x? - 5x + 13
[CBSE 2011]
9/4x2 - 4x +1
1. 3x - x - 4
11. 5x2 + 10x
12,8x2 - 4
13. If a and B are the zeros of the polynomial p(x) = 2x2 + 5x +k satisfying
21
the relation a? +B2 + aß = then find the value of k.
4
[CBSE 2017]
14. Find the quadratic polynomial, sum of whose zeros is 8 and their
product is 12. Hence, find the zeros of the polynomial.
ICBSE no​

Answer 1

Answer:

Ghana Ghana thava Eva execs waxed Ibo e'en is e'en he e'engnaw Eva Eva Eva WV ha web he e'en is rgb in WV in SC I'm ah I'm rgb I'm WV I'm WV I'm rgb I'm rgb I'm WV I'm rgb I'm WV I'm WV I'm ex I'm WV I'm TV ha hmm web if it's hmm he an HD do jx egg RFCs jam hava TX did thanks