Question

if a+b+c=12 , a^2+b^2+c^3=9 then find the value of abc=? and ab+bc+ca =?​

Answer 1

Answer:

ab+bc+ca= 135

Step by step explanation:

• (a+b+c)²= a²+b²+c²+ab+bc+ca
• 12²=9+ab+bc+ca
• 144-9=ab+bc+ca
• ab+bc+ca= 135