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The product of two binomials of the form $(x+a)(x+b)$ is equal to the product of the first terms of the binomials, plus the algebraic sum of the second terms by the common term of the binomials, plus the product of the second terms of the binomials. In other words: $(x+a)(x+b)=x^2+(a+b)x+ab$
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$f\left(x\right)=x^2+\left(-3+4\right)x-3\cdot 4$
Learn how to solve algebraic expressions problems step by step online. Simplify the expression f(x)=(x-3)(x+4). The product of two binomials of the form (x+a)(x+b) is equal to the product of the first terms of the binomials, plus the algebraic sum of the second terms by the common term of the binomials, plus the product of the second terms of the binomials. In other words: (x+a)(x+b)=x^2+(a+b)x+ab. Subtract the values 4 and -3. Multiply -3 times 4. Any expression multiplied by 1 is equal to itself.
