Question

If p and q are zeros of 3x^2-4x+5 ,then find the value of p+q

Answer 1

Answer:

4 / 3

Step-by-step explanation:

Given :

P ( x )  = 3 x² - 4 x + 5

x = - b ± √ b² - 4 ac / 2 a

x = 4 ± √ 16 - 4 × 15 / 6

x =  4 ± √ 16 - 60 / 6

x =  4 ± √ -14 / 6

x =  4 ± 14 i / 6

x = 2 ± 7 i / 3

It is given p and q are roots.

p = 2 + 7 i / 3

p = 2 / 3 + 7 i / 3

q = 2 - 7 /  3

q = 2 / 3 - 7 i / 3

Now p + q

p + q = 2 / 3 + 7 i / 3 + 2 / 3 - 7 i / 3

p + q = 2 / 3 + 2 / 3

p + q = 4 / 3

Answer 2

Answer:

P+Q = 4 / 3

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