Math, asked by chiguru1122, 8 months ago

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Answered by navadeepsai11
1

Answer:

1) 4

2) a) 3 , b) 0 (because it is not touching the x-axis at all)

3) a) yes b) no (because a polynomial should not contain negative or fractional powers)

4) sum = -b/a ⇒ sum =\frac{-13}{a^{2} + 9 } = x + 1/x

   product = c/a ⇒ product = \frac{6a}{a^{2} + 9 } = x * 1/x = 1

Solve these 2 equations and you will get the answer

5) by factor theorem,

f(-2) should be = 0 if -2 is a factor of f(a)

hence, 3(-2)² + 4(-2) + 2k = 0

12 - 8 + 2k = 0

k = -2

HOPE THIS HELPS YOU!

   

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