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An equation is true if each side of the equation simplifies to the same value or expression. Is the equation (a + b)² = a² + b² true? Explain. answer:  it is not true, in the first problem u add a and b togeather then u do to the power, if a was 2 and b was 3 than its 5 to the seconad power which is 25 with the secoand problem you do the power to both variables an you come up with a different answer if a was 2 and b was 3 than thats 2 to the secoand power which is 4 and 3 to the seconad power which is 9 and 4 and 9 dont add up to 25.