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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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$15625+\left(25y\right)^2+\left(-5y^2-y^3\right)^2+6250y+250\left(-5y^2-y^3\right)+50y\left(-5y^2-y^3\right)$
Learn how to solve simplification of algebraic expressions problems step by step online. Simplify the expression (125+25y-5y^2-y^3)^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. Expand \left(-5y^2-y^3\right)^2. When multiplying exponents with same base we can add the exponents.