Answer:
Step-by-step explanation:
In exponential multiplication, if bases are same, add the powers
xᵃ * xᵇ = xᵃ⁺ᵇ
Side = 12d⁶e⁷
Area of square = side *side
= 12d⁶e⁷ * 12d⁶e⁷
= 12* 12* d⁶e⁷ * d⁶e⁷
= 144d⁶⁺⁶ * e⁷⁺⁷
= 144d¹²e¹⁴
