Final answer to the problem
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A binomial squared (difference) is equal to the square of the first term, minus the double product of the first by the second, plus the square of the second term. In other words: $(a-b)^2=a^2-2ab+b^2$
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$f\left(x\right)=-\left(x^2-2x+1\right)+4$
Learn how to solve trigonometric equations problems step by step online. Simplify the expression f(x)=-(x-1)^2+4. A binomial squared (difference) is equal to the square of the first term, minus the double product of the first by the second, plus the square of the second term. In other words: (a-b)^2=a^2-2ab+b^2. Simplify the product -(x^2-2x+1). Simplify the product -(-2x+1). Subtract the values 4 and -1.