Final answer:
To simplify the expression (d+5) +(d+5) (d+5) into the simplest form, you can start by expanding the equation. Multiplying (d+5) by (d+5) gives you d^2 + 10d + 25.
Step-by-step explanation:
To simplify the expression (d+5) +(d+5) (d+5) into the simplest form, you can start by expanding the equation. Multiplying (d+5) by (d+5) gives you (d+5)(d+5) = d(d+5) + 5(d+5). Simplifying this further, you get d^2 + 5d + 5d + 25 = d^2 + 10d + 25. Finally, you can combine like terms to get the simplest form, which is d^2 + 10d + 25.