FIND the value of p³-q³ if p-q=10 and pq=7

asked Dec 6, 2023 118k views

2 votes

by Cgrim

8.1k points

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1 vote

Answer: it is close to the number 25 i think i think i think i think

Explanation:

dvyyffffvv

8.3k points

4 votes

Answer:

Hello,

Explanation:

$p-q=10\\(p-q)^2=100=p^2+q^2-2pq\ \Longrightarrow\ p^2+q^2=100+2*7=114\\\\p^3-q^3=(p-q)(p^2+pq+q^2)=10*(114+7)=10*121=1210\\$

Jaredready answered Dec 12, 2023

7.7k points

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