Why is (a - b) ^ 2 = a ^ 2 - 2ab + b ^ 2 also an expansion of a perfect square ? doch algebraic eypression
1 answer:
There's no deep meaning behind the equality you're asking about, it's just the result of a computation:
![(a-b)^2=(a-b)(a-b)=a^2-ab-ab+b^2=a^2-2ab+b^2](https://tex.z-dn.net/?f=%28a-b%29%5E2%3D%28a-b%29%28a-b%29%3Da%5E2-ab-ab%2Bb%5E2%3Da%5E2-2ab%2Bb%5E2)
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The standard form is 4,216,090.
Answer:
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Step-by-step explanation:
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