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2 years ago

What should be added to a²-2ab+b² to get a²-ab-2b²

Mathematics

1 answer:

dybincka [34]2 years ago

5 0

SOLUTION:

what should be added to a²-2ab+b² to get a²-ab-2b²

let the added no is P

$\pmb{P+(a^2-2ab+b^2)=(a^2-ab-2b^2) }$

$\pmb{P=(a^2-ab-2b^2)-(a^2-2ab+b^2) }$

$\pmb{P=a^2-ab-2b^2-a^2+2ab-b^2 }$

$\pmb{P=ab-3b^2 }$

$\therefore{\pmb{ab-3b^2 }}$ should be added to a²-2ab+b² to get a²-ab-2b²

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It is thought that for thousands of years, the mean number of sunspots per 4-week period was about µ = 41.

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Read more on Brainly.com - brainly.com/question/9741421#readmore

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3 years ago

What should be added to a²-2ab+b² to get a²-ab-2b² ​

What should be added to a²-2ab+b² to get a²-ab-2b²