Question

answer the one which is circled



answer are given

ii.(2x-3)²
iii.(3x+4y)²

​

Answer 1

Answer:

ii. (2x-3)²

iii. (3x+4y)²

Explanation:

ii. a²-2ab+b²=(a-b)²

4x²-12x+9=(2x)²- 2×4x×3 + (3)²

=(2x-3)²

iii. a²+2ab+b²=(a+b)²

9x²+24xy+16y² = (3x)²+ 2×3x×4y +(4y)²

= (3x+4y)²