Question

productos notables (3+x)²=​

Answer 1

${(3 + x)}^{2} = {3}^{2} + {x}^{2} + 2 \times 3 \times x = 9 + {x}^{2} + 6x$

Explicación paso a paso:

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