Question

If alpha and beta are the zeros of the quadratic polynomial f(x)= 4x^2+4x+4,such that alpha^2 + beta^=2u, find the value of u

Answer 1

Answer:

4

Step-by-step explanation:

aplha ^2+beta^2=2u

• (alpha+beta)^2-alpha.beta=2u
• As we know that x^2-(alpha+beta)x+alpha.beta
• so here we need to substitute the values
• (alpha+beta)^2=4^2
• alpha.beta=4
• after solving the equation we will get the ans as 4