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Simplify: \newline (x+1)(x−4)\left(x + 1\right)\left(x - 4\right)

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Full solution

Q. Simplify: \newline (x+1)(x−4)\left(x + 1\right)\left(x - 4\right)
  1. Apply Distributive Property: Apply the distributive property (FOIL method) to expand the expression.\newline(x+1)(x−4)=x⋅x+x⋅(−4)+1⋅x+1⋅(−4)(x + 1)(x - 4) = x \cdot x + x \cdot (-4) + 1 \cdot x + 1 \cdot (-4)\newline= x2−4x+x−4x^2 - 4x + x - 4
  2. Combine Like Terms: Combine like terms in the expanded expression.\newlinex2−4x+x−4=x2−3x−4x^2 - 4x + x - 4 = x^2 - 3x - 4

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