Next

Simplify: `(785 xx785 xx785 + 435 xx 435 xx 435)/(785 xx 785 + 435 xx 435 - 785 xx 435)`

---

(A)  350

---

(B)  785

---

(C)  1220

---

(D)  1320

---

(✓)  1220

Rule:
a³ - b³ = (a + b)(a² - ab + b²)

a = 785 and b = 435
Answer = (a + b) = 785 + 435 = 1220