Respuesta :
[tex]21 {q}^{2} [/tex]
Step-by-step explanation:
[tex]3 \times 7 \times q \times q = \\ 21 \times q \times q = \\ 21q {}^{2} [/tex]
[tex]21 {q}^{2} [/tex]
Step-by-step explanation:
[tex]3 \times 7 \times q \times q = \\ 21 \times q \times q = \\ 21q {}^{2} [/tex]