2 years ago

For all real numbers a and b, 2a • b = a2 + b2 Is this true or false? Explain why it false or true.

Mathematics

1 answer:

Andru [333]2 years ago

3 0

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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Answer:

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Step-by-step explanation:

x6−7=5

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3 years ago

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Tresset [83]

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2 years ago

Given AB=10cm, CD=11cm, and AD=39cm, find the length of BC

liraira [26]

<u>Answer:</u>

BC = 18 cm

<u>Step-by-step explanation:</u>

As we can see from the diagram:

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1 year ago

I need help with this question

Julli [10]

Answer:

it's 324

Step-by-step explanation:

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2 years ago