Question

(2a + 4b)^2 - (2a + 4b) (2a - 4b) + (2a - 4b)^2
plz tell me that one ​

Answer 1

Answer:

4(a²+12b²)

Step-by-step explanation:

(2a)²+(4b)²+2(2a)(4b)-[(2a)(2a)+(2a)(4b)-(2a)(4b)-(4b)(4b)]

+(2a)²+(4b)²-2(2a)(4b)

4a²+16b²+16ab-(4a²+8ab-8ab-16b²)+4a²+16b²-16ab

4a²+16b²+16ab-4a²-8ab+8ab+16b²+4a²+16b²-16ab

a²(4-4+4)+b²(16+16+16)+ab(16-8+8-16)

4a²+48b²

4(a²+12b²)