Question

x²-15 find zeroes of the polynomial​

Answer 1

Answer:

$x {}^{2} - 15 \\ x {}^{2} = 15 \\ x = (15) {}^{2} \\ x = 225$

I hope you understand

Answer 2

Answer:

x²-15=0

(x)²-(√15)² =0 {a²-b²= (a+b)(a-b)

(x+√15)(x-√15)=0

x=-√15 and x=√15

so zeros of polynomial are (-√15 & √15)