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Expand the trinomial using the formula $\left(a+b+c\right)^2 = a^2 + b^2 + c^2 + 2ab + 2ac + 2bc$
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$\left(2m\right)^2+x^2+\left(2y-2\right)^2-4mx+4m\left(2y-2\right)-2x\left(2y-2\right)$
Learn how to solve problems step by step online. Expand the expression (2m-x2y+-2)^2. Expand the trinomial using the formula \left(a+b+c\right)^2 = a^2 + b^2 + c^2 + 2ab + 2ac + 2bc. The power of a product is equal to the product of it's factors raised to the same power. Multiply the single term 4m by each term of the polynomial \left(2y-2\right). Multiply the single term -2x by each term of the polynomial \left(2y-2\right).