Question

If a and Bare zeroes of a polynomial x2-2x-15 then form a quadratic polynomial whose zeroes are 2a
and 2B
​

Answer 1

Answer:

x^2-4x-60

Step-by-step explanation:

x^2-2x-15=0

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

so a= -3 and b=+5

so 2a and 2b are -6 and +10 respectively

so new polynomial is

(x+6)(x-10)

x^2-4x-60