Question

simplify using identities 155 × 155 -145 × 145 ​

Answer 1

Answer:

3000

Step-by-step explanation:

155×155-145×145

155²-145²

(155+145)(155-145) [since a²-b²=(a+b)(a-b)]

(300)(10)

3000

Answer 2

Answer:

3000 is the correct answer please mark me as brainlist

Step-by-step explanation:

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