Question

(a +b) 2 = (a +b) (a+b)=

(a - b) 2 = (a - b)(a - b)=

(6a + 5)2 = (a + 5) =

(7m - 6)2 =(7m - 6) ()=

Answer 1

Explicación paso a paso:

Formula de binomio al  cuadrado:

(a ± b)² = a² ± 2ab + b²

Resolvamos:

(a+b)² = (a+b)(a+b) = a²+2ab+b²

(a-b)² = (a-b)(a-b) = a²-2ab+b²

(6a+5)² = (6a+5)(6a+5) = 36a²+60a+25

(7m-6)² = (7m-6)(7m-6) = 49m²-84m+36