Question

(a) (m-3)²

(b) (2a-5)²

(c) (7 -3c)²​

Answer 1

Explicação passo a passo:

quadrado da diferença

(a)

(m-3)² = [ ( m)² - 2 * m * 3 + ( 3 )² ] = m² - 6m + 9 >>>>>

(b)

(2a-5)² = [ ( 2a)² - 2 * 2a * 5 + ( 5 )² ] = 4a² - 20a + 25 >>>>

(c)

(7 -3c)²​ = [ ( 7 )² -2 * 7 * 3c + ( 3c)² ]= 49 - 42c + 9c² >>>>