Question

hlo frnds



If x= 6-V35, find the value of x2 +
x2



If x=2 is a zeroes of a polynomial 2x2 + 3x - p, then find the value of p.




Find the value of x2 + y2 + 15xy - 125, if x + y = 5





Without actually calculating, find the value of (25)- (75) + (50)​

Answer 1

2) putting x=2in the polynomial.

let f(x)=2×2+3x-p

now, f(x)=0

4+3×2-p=0

10-p=0

-p=-10

therefore p=10