Question

if αand β are zeros of polynomial x²-2x-15, then from a quadratic polynomial whose zeroes are 2α and 2β​

Answer 1

Step-by-step explanation:

x2-5x+3x-15

x(x-5)+3(x-5)

(x+3)(x-5)

x+3=0,x-5=0

x=-3,x=5

a=5,b=-3