a²-(2a+3b)²

Asked by baruniagarwal.112056 | 27th Apr, 2021, 08:46: AM

Expert Answer:

a2 - (2a + 3b)2 = a2 - [(2a)2 + (3b)2 + 2(2a)(3b)]
= a2 - 4a2 - 9b2 - 12ab
= -9b2 - 12ab - 3a2

Answered by Renu Varma | 27th Apr, 2021, 11:53: AM