Question

if a and B are the zeroes of the quadratic polynomial p(x)=x2-8x+15 then find the value of a^3+b^3​

Answer 1

Answer:

refer the attachment

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Answer 2

Answer: 152

Step-by-step explanation: p(x)=x^2-8x+15

Therefore we have to solve the quadratic equation.

x²-8x+15=x²-3x-5x+15

x(x-3)-5(x-3)=0

By this we get the factors of the equation as (x-3) and (x-5)

x=3,5. Therefore we get the value a & b as 3,5.

So by substituting the value of a & b as 3 & 5 in equation a³+b³

we get 27+125 which is 152.