Question

Resuelve los productos notables ( a+7 )2

Answer 1

${(a + 7)}^{2} = {a}^{2} + {7}^{2} + 2 \times a \times 7 = {a}^{2} + 49 + 14a$

Explicación paso a paso:

${(x + y)}^{2} = {x}^{2} + {y}^{2} + 2xy$