Question

Using the identity. (a-b)² = a²-2ab+b²

1) (194)²

2) (82)²

3) (423)²

4) (514)²​

Answer 1

Answer:

1. 37676

2. 6724

3.178,929

Step-by-step explanation:

so by the given identity

1) (200-6)²= 200²-2×200×6+6²= 40000-400×6+36

=40000-2400+36

=37636

2) (90-8)²= 90²- 2×90×8+8²=8100 - 1440 +64 = 6724

3) (430-7)²= 184,900 - 6,020+ 49=178,929

hope it is helpful....