Question

if a+b = 8, ab = 15, find the value of a³+b³

Answer 1

Answer:

152

Step-by-step explanation:

If you think of what numbers add up to 8 your easy options are 4+4 and 5+3 only one of those when multiplied by each other comes to 15. That being 5 and 3, so if you do $3^{3}+5^{3}$ simplify making it 27+125 and you get your answer.