Answer:
Solution given:
[tex] \frac{1 + {4}^{2} \times 3}{7} [/tex]
[tex] \frac{1 + 16 \times 3}{7} [/tex]
[tex] \frac{1 + 48}{7} [/tex]
[tex] \frac{49}{7} [/tex]
7 is a required expression.