For all real numbers a and b, 2a • b = a2 + b2 Is this true or false? Explain why it false or true.
1 answer:
Answer:
It's false.... correct is a2+2ab+b2
Step-by-step explanation:
This cannot be factored anymore although. when we try to substitute a with 5 and b with 2, the answer in the right hand side of the equation is -9.
That's why it's false.
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