Question

factorise 1-64(3x-5y)^2​

Answer 1

Answer:

a^2 - b^2 = (a+b) (a-b)

a^2 =1

b^2 =64(3x-5y)^2

1 - 64(3x-5y)^2 = (1+8(3x-5y)) (1-8(3x-5y))

                         = (1+24x-40y)(1-24x+40y)

Step-by-step explanation:

Answer 2

Answer:

multiply each term with the other

Step-by-step explanation:

(1-192x+50y)²