If a+b+c=12 and a²+b²+c²=64 find the value of ab+bc+ac

1.	If a+b+c=12 and a²+b²+c²=64 find the value of ab+bc+ac
Answer» rong>Answer: 40 = ab+bc+ac Step-by-step explanation: GIVEN, a + b + c = 12 , a²+b²+c²=64 We know that, (a + b + c)²= a²+b²+c²+ 2(ab+bc+ac) (12)²= 64 + 2 ( ab+bc+ac) 144-64= 2(ab+bc+ac) 80/2 = ab+bc+ac 40= ab+bc+ac I hope this will HELP you! PLEASE MARK me as brainlist

Answer»

rong>Answer:

40 = ab+bc+ac

Step-by-step explanation:

GIVEN,

a + b + c = 12 , a²+b²+c²=64

We know that,

(a + b + c)²= a²+b²+c²+ 2(ab+bc+ac)

(12)²= 64 + 2 ( ab+bc+ac)

144-64= 2(ab+bc+ac)

80/2 = ab+bc+ac

40= ab+bc+ac

I hope this will HELP you!

PLEASE MARK me as brainlist

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If a+b+c=12 and a²+b²+c²=64 find the value of ab+bc+ac​