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A binomial squared (sum) is equal to the square of the first term, plus 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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$x\left(4x+3\right)\leq \left(2x\right)^2+4x+1$
Learn how to solve problems step by step online. Solve the inequality x(4x+3)<=(2x+1)^2. A binomial squared (sum) is equal to the square of the first term, plus 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. The power of a product is equal to the product of it's factors raised to the same power. Multiply the single term x by each term of the polynomial \left(4x+3\right). When multiplying two powers that have the same base (x), you can add the exponents.