2 years ago

Is 2a * b = a^2 + b^2 true or false

1 answer:

5 0

First step of the equation is to simplify the equation 2a • b = a2 + b2 into 2 ab = a2 + b2. 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. hence the answer to this problem is false. we can try another values to verify.

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2 years ago

If 5x=10. What is the value of x

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Answer: 2

Step-by-step explanation:

This should be right because 5 * 2 = 10

5x mean that 5 * x = 10