Oh, isn't that a beautiful mathematical expression you have there? When we simplify it, we can see that 3ab and 5ba are actually the same thing! Both expressions represent the product of 3 and a, and b. Just like painting a happy little tree, sometimes math can surprise us with its simplicity and beauty.
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2a-3ab = -1
(3ab)^(2) Explanation: Simplify (3ab)^2 Use the power rule (ab)^n = a^nb^n to distribute the exponent. Raise 3 to the power of 2. 9a^2b^2
-1
-2ab
(a+b)3=a3+b3+3ab(a+b) a3+b3=(a+b)3-3ab(a+b) a3+b3=(a+b)(a2-ab+b2)