Question

ii) (2x + 10)^2 - (2x - 10)^2​

Answer 1

Answer:

0

Step-by-step explanation:

(2x+10)^2-(2x-10)^2

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

here, a= (2 +10)

b= (2x-10)

(2x10)^2 - (2x102)^2 = (2x+10+2x-10) (2x+10-2x-10)

(2x+10+2x-10) (2x+10-2x-10) = (4x+0) (0x+0)

(2x+10+2x-10) (2x+10-2x-10) = (4x+0) (0x+0) = 4x (0)

(2x+10+2x-10) (2x+10-2x-10) = (4x+0) (0x+0) = 4x (0) = 0