Question

(ab+bc) square-2 ab square c​

Answer 1

Step-by-step explanation:

(ab+bc)²-2ab²c

∞ So,here will use the identity (a+b)² = a²+b²+2ab

→ (ab)²+(bc)1+2(ab)(bc)-2ab²c

→ a²b²+b²c²+2ab²c-2ab²c

→ a²b²+b²c²

∞ As we know,negative digits can cancel with positive digits(in third step). So,we got the required answer.

SomeImportantIdentities

★ (a+b)²=a²+b²+2ab)

★ (a-b)²=a²+b²-2ab

★ (a²-b²)=(a-b)(a+b)

★ (x+a)(x+b)=x²+(a+b)x+ab

Hope it help you out

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Answer 2

hope helps you make me as brainlist