Question

If a+b+c=p and ab+bc+ca=q find a square b square c square

Answer 1

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ANSWER ::

a² + b² + c²

= ( a + b + c) ² - 2 ( ab+bc+ca )

= p² - 2q

Answer 2

Answer:p^2 - 2q

Step-by-step explanation:

(a+b+c)^2 = a^2 + b^2 + c^2 +2(ab+bc+ca)

=p^2 = a^2 + b^2 + c^2 + 2q

= a^2 + b^2 + c^2 = p^2 + 2q