If a2 + b2 + 49c2 + 18 = 2(b - 28c - a) then the value of (a + b - 7c) is:4321
Question
Solution 1
The given equation is a^2 + b^2 + 49c^2 + 18 = 2(b - 28c - a).
Let's rearrange the equation:
a^2 + 2a + b^2 - 2b + 49c^2 + 2*28c + 18 = 0.
This can be rewritten as:
(a + 1)^2 + (b - 1)^2 + (7c + 1)^2 = 0.
Since the square of a real number is always non-negative, the sum of three squares equals Knowee AI StudyGPT is a powerful AI-powered study tool designed to help you to solve study prob
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