Multiply polynominls \( 4+5 \) And \( 3 y^{2}-2 y+2 \) \( (y+5)\left(3 y^{2}\right. \) \( x\left(3 y^{2}-2 y+2\right)+5(y+5 \)
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To multiply the polynomials \(4+5\) and \(3y^2 - 2y + 2\), simply combine the constant terms and distribute: First, we can rewrite \(4 + 5\) as \(9\). So, the multiplication becomes: \[ 9(3y^2 - 2y + 2) = 27y^2 - 18y + 18. \] For the expression \( (y + 5) \cdot (3y^2) \), simply use distribution to get: \[ 3y^3 + 15y^2. \] Now, let’s tackle the last expression \( x(3y^2 - 2y + 2) + 5(y + 5) \). First, distribute \(x\) in the first part: \[ 3xy^2 - 2xy + 2x + 5y + 25. \] Combining all these terms gives a neat polynomial! If you mix power and fun, you've got the energy of multiplication at your fingertips!